Marquise|Lab Grown|IGI

1.20ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG818657945

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818657945

Diamond specifications and retailer prices

From $231 USD
As of October 28, 2026
Save $986 USD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,217 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818657945 or 818657945. Listed at 22 retailers as of October 28, 2026, with prices from $231 to $1,217, a $986 spread on the same certified stone. Reve Diamonds lists it at $1,217. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657945
Dimensions10.50 × 5.48 × 3.39 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.50 mm5.48 mm1.20 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657945
Side View
Table 58.0%Crown 37.3°Girdle: THK-VTKPavilion 37.1°Culet: NoneDepth 61.9%

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 28
Current: $473 USD|Low: $231 USD|High: $1,043 USD|Avg: $544 USD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 2$231 USD
Retailer 5$257 USD
Retailer 3$348 USD
Retailer 6$420 USD
Retailer 8$442 USD
Retailer 1$473 USD
Retailer 11$538 USD
Retailer 9$629 USD
Retailer 12$630 USD
Retailer 13$663 USD
Retailer 7$729 USD
Retailer 4$860 USD
Retailer 10$1,033 USD

42 data points across 13 retailers

22 retailers$231 USD to $1,217 USD

Retailer 1
-
$199 USD
Price last confirmed 27 days ago
A
Retailer 2
-
$231 USD
View
Final sale: no returns
Retailer 3
-
$241 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$257 USD
View
Price last confirmed 26 days ago
A
Retailer 5
-
$294 USD
HK$2,300 HKD
View
B+
Retailer 6
-
$348 USD
View
A
Retailer 7
-
$420 USD
€400 EUR
View
A
Retailer 8
-
$435 USD
View
A
Retailer 9
-
$442 USD
ZAR 7,136 ZAR
View
A
Retailer 10
-
$473 USD
£372 GBP
View
B+
Retailer 11
-
$538 USD
A$828 AUD
View
B+
Retailer 12
-
$629 USD
A$967 AUD
View
B+
Retailer 13
-
$630 USD
View
B
Retailer 14
-
$663 USD
View
B+
Retailer 15
-
$729 USD
A$1,122 AUD
View
Retailer 16
-
$827 USD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$837 USD
SGD 1,131 SGD
View
B
Retailer 18
-
$860 USD
View
B
Retailer 19
-
$877 USD
View
B
Retailer 20
-
$880 USD
View
B
Retailer 21
-
$1,033 USD
£813 GBP
View
Most Expensive
B
Reve Diamonds
02ACDE5D5 · Oct 28
$1,217 USD
View
21 more retailers have this diamond
Prices start from $231 USDSave up to $986 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
$231 USD