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Marquise|Lab Grown|IGI

1.61ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG761521649

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG761521649

Diamond specifications and retailer prices

From $529 USD
As of October 30, 2026
Save $2,611 USD (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $3,140 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown marquise diamond

This 1.61ct 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 top-tier cut grade and certified by IGI LG761521649 or 761521649. Listed at 26 retailers as of October 30, 2026, with prices from $529 to $3,140, a $2,611 spread on the same certified stone. Brilliant Earth lists it at $3,140. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.61
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761521649
Dimensions11.63 × 6.14 × 3.86 mm
L/W Ratio1.89
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
11.63 mm6.14 mm1.61 ctD / IF
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761521649
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,140 USD|Low: $529 USD|High: $4,830 USD|Avg: $1,596 USD|-35.0%
Brilliant Earth
Retailer 2
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Retailer 21
November 1, 2026
Retailer 16$529 USD
Retailer 7$591 USD
Retailer 17$655 USD
Retailer 2$693 USD
Retailer 14$761 USD
Retailer 10$790 USD
Retailer 20$878 USD
Retailer 8$880 USD
Retailer 13$1,008 USD
Retailer 5$1,127 USD
Retailer 4$1,210 USD
Retailer 18$1,275 USD
Retailer 15$1,469 USD
Retailer 3$1,724 USD
Retailer 11$1,905 USD
Retailer 6$2,130 USD
Retailer 9$2,242 USD
Retailer 21$2,431 USD
Retailer 12$2,710 USD
Retailer 19$2,751 USD
Brilliant Earth$3,140 USD

30 data points across 21 retailers

26 retailers$529 USD to $3,140 USD

A
Cheapest Retailer
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$529 USD
A
Retailer 2
-
$591 USD
View
Final sale: no returns
Retailer 3
-
$614 USD
View
Price last confirmed 24 days ago
A
Retailer 4
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$655 USD
View
Retailer 5
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$690 USD
View
Price last confirmed 33 days ago
A
Retailer 6
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$693 USD
£546 GBP
View
Retailer 7
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$761 USD
View
Price last confirmed 16 days ago
Retailer 8
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$761 USD
View
Price last confirmed 29 days ago
Retailer 9
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$781 USD
HK$6,100 HKD
View
Price last confirmed 58 days ago
A
Retailer 10
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$790 USD
View
A
Retailer 11
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$878 USD
View
A
Retailer 12
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$880 USD
View
A
Retailer 13
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$1,008 USD
£794 GBP
View
A
Retailer 14
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$1,127 USD
ZAR 18,199 ZAR
View
A
Retailer 15
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$1,210 USD
View
A
Retailer 16
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$1,275 USD
€1,214 EUR
View
A
Retailer 17
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$1,469 USD
View
B+
Retailer 18
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$1,724 USD
View
B+
Retailer 19
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$1,905 USD
£1,500 GBP
View
Retailer 20
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$2,001 USD
View
Price last confirmed 32 days ago
B+
Retailer 21
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$2,130 USD
View
B+
Retailer 22
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$2,242 USD
View
B+
Retailer 23
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$2,431 USD
View
Retailer 24
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$2,710 USD
View
Price last confirmed 14 days ago
B
Retailer 25
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$2,751 USD
£2,166 GBP
View
Most Expensive
B
Brilliant Earth
18182037A · Oct 31
$3,140 USD
View
25 more retailers have this diamond
Prices start from $529 USDSave up to $2,611 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
1.61ct Marquise
$529 USD