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Cushion|Lab Grown|IGI

1.28ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG786634346

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG786634346

Diamond specifications and retailer prices

From $529 SGD
$414 USD
As of November 1, 2026
Save $2,264 SGD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,794 SGD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown cushion diamond

This 1.28ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG786634346 or 786634346. Listed at 18 retailers as of October 27, 2026, with prices from $529 to $2,794, a $2,264 spread on the same certified stone. Queensmith lists it at $2,794. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786634346
Dimensions7.01 × 6.41 × 3.88 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.01 mm6.41 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786634346
Side View
Table 53.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: LargeDepth 60.5%

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 1
Current: $1,073 SGD|Low: $509 SGD|High: $2,443 SGD|Avg: $1,252 SGD|+1.8%
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
Retailer 14
November 2, 2026
Retailer 11$529 SGD
Retailer 12$592 SGD
Retailer 5$593 SGD
Retailer 3$657 SGD
Retailer 14$657 SGD
Retailer 9$844 SGD
Retailer 13$882 SGD
Retailer 1$1,073 SGD
Retailer 8$1,602 SGD
Retailer 10$1,843 SGD
Retailer 6$1,910 SGD
Retailer 4$2,090 SGD
Retailer 2$2,113 SGD
Retailer 7$2,414 SGD

43 data points across 14 retailers

18 retailers$529 SGD to $2,794 SGD

A
Cheapest Retailer
-
$529 SGD
$414 USD
A
Retailer 2
-
$592 SGD
$463 USD
View
Final sale: no returns
A
Retailer 3
-
$593 SGD
$464 USD
View
A
Retailer 4
-
$657 SGD
$514 USD
View
Retailer 5
-
$657 SGD
$514 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$844 SGD
$660 USD
View
B+
Retailer 7
-
$882 SGD
$690 USD
View
B+
Retailer 8
-
$912 SGD
$713 USD
View
B+
Retailer 9
-
$1,073 SGD
£661 GBP
View
B
Retailer 10
-
$1,602 SGD
A$1,927 AUD
View
B
Retailer 11
-
$1,843 SGD
$1,441 USD
View
B
Retailer 12
-
$1,910 SGD
£1,176 GBP
View
B
Retailer 13
-
$2,090 SGD
View
B
Retailer 14
-
$2,113 SGD
$1,652 USD
View
B
Retailer 15
-
$2,157 SGD
$1,686 USD
View
B
Retailer 16
-
$2,402 SGD
$1,878 USD
View
B
Retailer 17
-
$2,414 SGD
£1,486 GBP
View
Most Expensive
B
Queensmith
LG786634346 · Oct 27
$2,794 SGD
£1,720 GBP
View
17 more retailers have this diamond
Prices start from $529 SGDSave up to $2,264 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
1.28ct Cushion
$529 SGD