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Cushion|Lab Grown|IGI

1.80ct J VS1 Cushion Lab Grown Diamond

ID • J/VS1 • IGI LG436045211

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG436045211

Diamond specifications and retailer prices

From $1,266 SGD
$990 USD
As of October 31, 2026
Save $4,106 SGD (76%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,345 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG436045211 or 436045211. Listed at 7 retailers as of October 29, 2026, with a 324% 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

1.80
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045211
Dimensions7.11 × 7.05 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.11 mm7.05 mm1.80 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436045211
Side View
Table 58.0%Crown 34.9°Girdle: STK-VTKPavilion 38.9°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,345 SGD|Low: $1,266 SGD|High: $8,457 SGD|Avg: $4,594 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$1,266 SGD
Retailer 6$2,820 SGD
Retailer 4$2,922 SGD
Retailer 7$3,138 SGD
Retailer 8$3,738 SGD
Retailer 5$4,573 SGD
Retailer 3$5,372 SGD
MOH London$8,345 SGD
Retailer 9$8,366 SGD

20 data points across 9 retailers

7 retailers$1,266 SGD to $5,372 SGD

A
Cheapest Retailer
-
$1,266 SGD
$990 USD
B
Retailer 2
-
$2,820 SGD
$2,206 USD
View
Final sale: no returns
Retailer 3
-
$2,922 SGD
$2,286 USD
View
Price last confirmed 22 days ago
B
Retailer 4
-
$3,138 SGD
$2,455 USD
View
B
Retailer 5
-
$4,573 SGD
$3,577 USD
View
B
Retailer 6
-
$5,372 SGD
ZAR 67,882 ZAR
View
Most Expensive
MOH London
LG436045211 · Nov 1
$8,345 SGD
£5,140 GBP
View
Price under review
6 more retailers have this diamond
Prices start from $1,266 SGDSave up to $4,106 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
1.80ct Cushion
$1,266 SGD