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Cushion|Lab Grown|IGI

1.51ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG687559370

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG687559370

Diamond specifications and retailer prices

From $363 SGD
As of November 4, 2026
Save $1,593 SGD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,956 SGD at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG687559370 or 687559370. Listed at 13 retailers as of November 4, 2026, with prices from $363 to $1,956, a $1,593 spread on the same certified stone. Taylor and Hart lists it at $1,956. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687559370
Dimensions6.73 × 6.65 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.73 mm6.65 mm1.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687559370
Side View
Table 57.0%Crown 34.1°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 68.1%

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: Nov 4
Current: $759 SGD|Low: $259 SGD|High: $2,452 SGD|Avg: $1,083 SGD|+3.7%
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
November 5, 2026
Retailer 2$363 SGD
Retailer 5$630 SGD
Retailer 11$632 SGD
Retailer 13$672 SGD
Retailer 8$694 SGD
Retailer 9$720 SGD
Retailer 1$759 SGD
Retailer 7$940 SGD
Retailer 4$1,460 SGD
Retailer 3$1,544 SGD
Retailer 12$1,581 SGD
Retailer 6$1,606 SGD
Retailer 10$1,954 SGD

44 data points across 13 retailers

13 retailers$363 SGD to $1,956 SGD

A
Cheapest Retailer
-
$363 SGD
Final sale: no returns
A
Retailer 2
-
$630 SGD
View
A
Retailer 3
-
$632 SGD
View
A
Retailer 4
-
$672 SGD
View
A
Retailer 5
-
$694 SGD
View
A
Retailer 6
-
$720 SGD
View
A
Retailer 7
-
$759 SGD
View
B+
Retailer 8
-
$940 SGD
View
B
Retailer 9
-
$1,544 SGD
View
B
Retailer 10
-
$1,581 SGD
View
B
Retailer 11
-
$1,606 SGD
View
B
Retailer 12
-
$1,954 SGD
View
Most Expensive
B
Taylor and Hart
I6J3AV6 · Nov 4
$1,956 SGD
$1,531 USD
View
12 more retailers have this diamond
Prices start from $363 SGDSave up to $1,593 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.

A
1.51ct Cushion
$363 SGD