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Cushion|Lab Grown|IGI

8.51ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG647454568

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG647454568

Diamond specifications and retailer prices

From $3,050 SGD
$2,386 USD
As of October 31, 2026
Save $15,691 SGD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,741 SGD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 8.51ct lab-grown cushion diamond

This 8.51ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG647454568 or 647454568. Listed at 14 retailers as of October 31, 2026, with prices from $3,050 to $18,741, a $15,691 spread on the same certified stone. Do Amore Diamonds lists it at $18,741. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.51
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647454568
Dimensions14.75 × 10.31 × 6.80 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.75 mm10.31 mm8.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647454568
Side View
Table 64.0%Crown 37.7°Girdle: STK-VTKPavilion 36.8°Culet: NoneDepth 66.0%

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 31
Current: $18,741 SGD|Low: $3,050 SGD|High: $19,969 SGD|Avg: $7,349 SGD|-6.1%
Do Amore Diamonds
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 13$3,050 SGD
Retailer 16$3,159 SGD
Retailer 12$3,369 SGD
Retailer 3$3,686 SGD
Retailer 5$3,730 SGD
Retailer 10$4,149 SGD
Retailer 8$4,238 SGD
Retailer 15$4,436 SGD
Retailer 11$5,848 SGD
Retailer 9$6,461 SGD
Retailer 4$6,624 SGD
Retailer 14$8,855 SGD
Retailer 2$9,336 SGD
Retailer 6$12,177 SGD
Retailer 7$15,980 SGD
Do Amore Diamonds$18,741 SGD

29 data points across 16 retailers

14 retailers$3,050 SGD to $18,741 SGD

A
Cheapest Retailer
-
$3,050 SGD
$2,386 USD
Final sale: no returns
Retailer 2
-
$3,159 SGD
$2,471 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$3,369 SGD
$2,635 USD
View
A
Retailer 4
-
$3,686 SGD
$2,883 USD
View
A
Retailer 5
-
$3,730 SGD
$2,918 USD
View
A
Retailer 6
-
$4,149 SGD
£2,556 GBP
View
A
Retailer 7
-
$4,436 SGD
$3,470 USD
View
B+
Retailer 8
-
$5,848 SGD
ZAR 73,903 ZAR
View
B+
Retailer 9
-
$6,461 SGD
A$7,775 AUD
View
B+
Retailer 10
-
$6,624 SGD
£4,080 GBP
View
B
Retailer 11
-
$8,855 SGD
$6,927 USD
View
B
Retailer 12
-
$9,336 SGD
£5,750 GBP
View
B
Retailer 13
-
$12,177 SGD
$9,525 USD
View
Most Expensive
B
Do Amore Diamonds
27-522F630BB · Nov 1
$18,741 SGD
$14,660 USD
View
13 more retailers have this diamond
Prices start from $3,050 SGDSave up to $15,691 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
8.51ct Cushion
$3,050 SGD