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Marquise|Lab Grown|IGI

1.20ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG500165197

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG500165197

Diamond specifications and retailer prices

From $1,285 SGD
As of November 4, 2026
Save $1,508 SGD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,107 SGD at Flawless Fine Jewelry · As of November 4, 2026
View at Flawless Fine Jewelry

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG500165197 or 500165197. Listed at 16 retailers as of November 4, 2026, with a 117% 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500165197
Dimensions11.56 × 5.56 × 3.30 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.56 mm5.56 mm1.20 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500165197
Side View
Table 61.5%Crown 36.1°Girdle: THN-STKPavilion 40.3°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,107 SGD|Low: $1,234 SGD|High: $5,122 SGD|Avg: $2,407 SGD
Flawless Fine Jewelry
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
November 5, 2026
Retailer 10$1,285 SGD
Retailer 3$1,399 SGD
Retailer 5$1,438 SGD
Retailer 11$1,469 SGD
Retailer 4$1,491 SGD
Retailer 12$1,491 SGD
Retailer 6$1,712 SGD
Retailer 7$2,128 SGD
Retailer 13$2,381 SGD
Retailer 8$2,742 SGD
Retailer 14$2,793 SGD
Retailer 9$3,883 SGD
Flawless Fine Jewelry$4,107 SGD
Retailer 2$5,042 SGD

45 data points across 14 retailers

16 retailers$1,285 SGD to $2,793 SGD

B+
Cheapest Retailer
-
$1,285 SGD
B
Retailer 2
-
$1,399 SGD
View
B
Retailer 3
-
$1,438 SGD
View
Final sale: no returns
B
Retailer 4
-
$1,469 SGD
View
Retailer 5
-
$1,491 SGD
View
Price last confirmed 20 days ago
B
Retailer 6
-
$1,491 SGD
View
B
Retailer 7
-
$1,712 SGD
View
B
Retailer 8
-
$2,128 SGD
View
B
Retailer 9
-
$2,381 SGD
View
B
Retailer 10
-
$2,742 SGD
View
B
Retailer 11
-
$2,793 SGD
View
Retailer 12
-
$3,115 SGD
View
Price under review
Retailer 13
-
$3,883 SGD
View
Price under review
Most Expensive
Flawless Fine Jewelry
70973F999 · Nov 4
$4,107 SGD
£2,532 GBP
View
Price under review
13 more retailers have this diamond
Prices start from $1,285 SGDSave up to $1,508 SGD

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.

B+
1.20ct Marquise
$1,285 SGD