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Cushion|Lab Grown|IGI

6.65ct H SI2 Cushion Lab Grown Diamond

ID • H/SI2 • IGI LG571309737

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG571309737

Diamond specifications and retailer prices

From $1,342 SGD
HK$8,200 HKD
As of October 30, 2026
Save $2,938 SGD (69%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,280 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 6.65ct lab-grown cushion diamond

This 6.65ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG571309737 or 571309737. Listed at 6 retailers as of October 29, 2026, with prices from $1,342 to $4,280, a $2,938 spread on the same certified stone. MOH London lists it at $4,280. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.65
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571309737
Dimensions12.48 × 10.30 × 6.95 mm
L/W Ratio1.21
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
12.48 mm10.30 mm6.65 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG571309737
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 67.5%

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: Oct 30
Current: $4,280 SGD|Low: $1,342 SGD|High: $10,573 SGD|Avg: $4,380 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4$1,342 SGD
Retailer 2$1,355 SGD
Retailer 3$1,718 SGD
Retailer 6$1,837 SGD
Retailer 7$2,491 SGD
Retailer 5$2,984 SGD
MOH London$4,280 SGD
Retailer 9$6,863 SGD
Retailer 10$9,294 SGD
Retailer 8$10,573 SGD

3 data points across 10 retailers

6 retailers$1,342 SGD to $4,280 SGD

A
Cheapest Retailer
-
$1,342 SGD
HK$8,200 HKD
A
Retailer 2
-
$1,355 SGD
£835 GBP
View
B+
Retailer 3
-
$1,718 SGD
$1,344 USD
View
B+
Retailer 4
-
$1,837 SGD
$1,437 USD
View
B+
Retailer 5
-
$2,984 SGD
$2,334 USD
View
Most Expensive
B
MOH London
LG571309737 · Oct 29
$4,280 SGD
£2,636 GBP
View
5 more retailers have this diamond
Prices start from $1,342 SGDSave up to $2,938 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
6.65ct Cushion
$1,342 SGD