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Marquise|Lab Grown|IGI

1.20ct D VVS1 Marquise Lab Grown Diamond

EX • D/VVS1 • IGI LG790612037

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790612037

Diamond specifications and retailer prices

From $344 USD
As of November 4, 2026
Save $1,317 USD (79%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,671 USD at MOH London · As of October 26, 2026
View at MOH London

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG790612037 or 790612037. Listed at 23 retailers as of November 4, 2026, with a 383% 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

1.20
Carat
D
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790612037
Dimensions10.85 × 5.53 × 3.49 mm
L/W Ratio1.96
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
10.85 mm5.53 mm1.20 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790612037
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 40°Culet: NoneDepth 63.1%

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: $1,671 USD|Low: $344 USD|High: $1,769 USD|Avg: $879 USD|-5.3%
MOH London
Retailer 2
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Retailer 23
November 4, 2026
Retailer 16$344 USD
Retailer 11$385 USD
Retailer 6$400 USD
Retailer 5$427 USD
Retailer 23$427 USD
Retailer 7$473 USD
Retailer 2$486 USD
Retailer 19$580 USD
Retailer 4$621 USD
Retailer 10$670 USD
Retailer 12$688 USD
Retailer 20$688 USD
Retailer 18$736 USD
Retailer 17$759 USD
Retailer 13$1,041 USD
Retailer 21$1,145 USD
Retailer 3$1,252 USD
Retailer 15$1,366 USD
Retailer 22$1,373 USD
Retailer 9$1,415 USD
Retailer 14$1,654 USD
Retailer 8$1,661 USD
MOH London$1,671 USD

29 data points across 23 retailers

23 retailers$344 USD to $1,661 USD

A
Cheapest Retailer
-
$344 USD
A
Retailer 2
-
$385 USD
View
Final sale: no returns
A
Retailer 3
-
$400 USD
View
A
Retailer 4
-
$427 USD
View
Retailer 5
-
$427 USD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$473 USD
View
A
Retailer 7
-
$486 USD
View
B+
Retailer 8
-
$580 USD
View
B+
Retailer 9
-
$621 USD
View
B+
Retailer 10
-
$670 USD
View
B+
Retailer 11
-
$688 USD
View
Retailer 12
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$688 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
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$736 USD
View
B+
Retailer 14
-
$759 USD
View
B+
Retailer 15
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$1,041 USD
View
B
Retailer 16
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$1,145 USD
View
Price last confirmed 7 days ago
B
Retailer 17
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$1,252 USD
View
B
Retailer 18
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$1,366 USD
View
B
Retailer 19
-
$1,373 USD
View
B
Retailer 20
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$1,415 USD
View
B
Retailer 21
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$1,654 USD
View
B
Retailer 22
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$1,661 USD
View
Most Expensive
MOH London
LG790612037 · Oct 26
$1,671 USD
£1,316 GBP
View
Price last confirmed 8 days ago
22 more retailers have this diamond
Prices start from $344 USDSave up to $1,317 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
1.20ct Marquise
$344 USD