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Marquise|Lab Grown|IGI

1.05ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG811619672

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619672

Diamond specifications and retailer prices

From $257 USD
As of November 4, 2026
Save $1,215 USD (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,550 USD at Brilliant Earth · As of October 16, 2026
View at Brilliant Earth

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811619672 or 811619672. Listed at 26 retailers as of October 30, 2026, with a 473% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619672
Dimensions10.33 × 5.38 × 3.33 mm
L/W Ratio1.92
Girdle conditionFaceted
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
10.33 mm5.38 mm1.05 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619672
Side View
Table 62.0%Crown 32.8°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
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: Nov 4
Current: $2,550 USD|Low: $247 USD|High: $2,550 USD|Avg: $811 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 7$257 USD
Retailer 4$298 USD
Retailer 6$319 USD
Retailer 9$319 USD
Retailer 11$327 USD
Retailer 10$430 USD
Retailer 16$480 USD
Retailer 14$550 USD
Retailer 3$579 USD
Retailer 2$598 USD
Retailer 17$609 USD
Retailer 13$782 USD
Retailer 12$979 USD
Retailer 8$1,025 USD
Retailer 15$1,277 USD
Retailer 5$1,280 USD
Retailer 18$1,472 USD
Brilliant Earth$2,550 USD

36 data points across 18 retailers

26 retailers$257 USD to $1,472 USD

A
Cheapest Retailer
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$257 USD
A
Retailer 2
-
$287 USD
View
Final sale: no returns
A
Retailer 3
-
$298 USD
View
Retailer 4
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$319 USD
View
Price last confirmed 11 days ago
A
Retailer 5
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$319 USD
View
A
Retailer 6
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$327 USD
View
A
Retailer 7
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$430 USD
View
A
Retailer 8
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$480 USD
View
A
Retailer 9
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$550 USD
View
A
Retailer 10
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$563 USD
View
A
Retailer 11
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$579 USD
View
A
Retailer 12
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$598 USD
View
A
Retailer 13
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$606 USD
View
A
Retailer 14
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$609 USD
View
B+
Retailer 15
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$782 USD
View
B+
Retailer 16
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$814 USD
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B+
Retailer 17
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$857 USD
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B+
Retailer 18
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$979 USD
View
B+
Retailer 19
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$1,025 USD
View
B+
Retailer 20
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$1,076 USD
View
B
Retailer 21
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$1,249 USD
View
B+
Retailer 22
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$1,277 USD
View
Retailer 23
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$1,280 USD
View
Price last confirmed 8 days ago
B
Retailer 24
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$1,375 USD
View
B
Retailer 25
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$1,472 USD
View
Most Expensive
Brilliant Earth
20879627A · Oct 16
$2,550 USD
View
Price last confirmed 19 days ago
25 more retailers have this diamond
Prices start from $257 USDSave up to $1,215 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
1.05ct Marquise
$257 USD