Marquise|Lab Grown|IGI

1.55ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG754595289

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754595289

Diamond specifications and retailer prices

From $658 USD
As of November 4, 2026
Save $2,548 USD (79%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $3,618 USD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG754595289 or 754595289. Listed at 32 retailers as of November 4, 2026, with a 387% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595289
Dimensions11.66 × 6.00 × 3.80 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.66 mm6.00 mm1.55 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595289
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $3,618 USD|Low: $658 USD|High: $3,990 USD|Avg: $2,069 USD
Novita Diamonds
Retailer 2
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Retailer 24
November 6, 2026
Retailer 6$658 USD
Retailer 2$823 USD
Retailer 22$850 USD
Retailer 23$934 USD
Retailer 16$1,088 USD
Retailer 7$1,150 USD
Retailer 19$1,180 USD
Retailer 21$1,201 USD
Retailer 13$1,241 USD
Retailer 15$1,557 USD
Retailer 18$1,927 USD
Retailer 14$1,936 USD
Retailer 9$1,950 USD
Retailer 8$2,146 USD
Retailer 5$2,377 USD
Retailer 4$2,604 USD
Retailer 3$2,633 USD
Retailer 10$2,655 USD
Retailer 17$2,675 USD
Retailer 11$2,703 USD
Retailer 24$2,800 USD
Retailer 12$2,860 USD
Retailer 20$3,206 USD
Novita Diamonds$3,618 USD

30 data points across 24 retailers

32 retailers$658 USD to $3,206 USD

A
Cheapest Retailer
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$658 USD
Retailer 2
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$741 USD
View
Price last confirmed 29 days ago
Retailer 3
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$741 USD
View
Price last confirmed 37 days ago
Retailer 4
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$806 USD
View
Price last confirmed 38 days ago
A
Retailer 5
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$823 USD
View
Final sale: no returns
Retailer 6
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$847 USD
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Price last confirmed 38 days ago
A
Retailer 7
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$850 USD
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Retailer 8
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$859 USD
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Price last confirmed 34 days ago
Retailer 9
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$859 USD
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Price last confirmed 27 days ago
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Retailer 10
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$934 USD
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A
Retailer 11
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$1,088 USD
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A
Retailer 12
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$1,150 USD
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A
Retailer 13
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$1,180 USD
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A
Retailer 14
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$1,201 USD
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A
Retailer 15
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$1,241 USD
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A
Retailer 16
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$1,557 USD
View
B+
Retailer 17
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$1,927 USD
View
B+
Retailer 18
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$1,936 USD
View
B+
Retailer 19
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$1,950 USD
View
B+
Retailer 20
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$2,146 USD
View
B+
Retailer 21
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$2,377 USD
View
Retailer 22
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$2,416 USD
View
Price last confirmed 27 days ago
Retailer 23
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$2,416 USD
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Price last confirmed 37 days ago
B
Retailer 24
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$2,604 USD
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B
Retailer 25
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$2,633 USD
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B
Retailer 26
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$2,655 USD
View
Retailer 27
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$2,675 USD
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Price last confirmed 9 days ago
B
Retailer 28
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$2,703 USD
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B
Retailer 29
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$2,800 USD
View
B
Retailer 30
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$2,860 USD
View
B
Retailer 31
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$3,206 USD
View
Most Expensive
Novita Diamonds
cert_754595289 · Oct 8
$3,618 USD
A$5,566 AUD
View
Price last confirmed 28 days ago
31 more retailers have this diamond
Prices start from $658 USDSave up to $2,548 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.55ct Marquise
$658 USD