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Cushion|Lab Grown|IGI

0.99ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG681521978

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG681521978

Diamond specifications and retailer prices

From $228 SGD
$178 USD
As of October 30, 2026
Save $1,133 SGD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,361 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.99ct lab-grown cushion diamond

This 0.99ct lab-grown cushion sits in the just-under-one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG681521978 or 681521978. Listed at 14 retailers as of October 30, 2026, with prices from $228 to $1,361, a $1,133 spread on the same certified stone. Reve Diamonds lists it at $1,361. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681521978
Dimensions6.86 × 5.32 × 3.61 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.86 mm5.32 mm0.99 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681521978
Side View
Table 63.0%Crown 29.9°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 67.9%

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: Oct 30
Current: $445 SGD|Low: $228 SGD|High: $1,367 SGD|Avg: $655 SGD|+3.4%
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
Reve Diamonds
October 30, 2026
Retailer 13$228 SGD
Retailer 12$327 SGD
Retailer 5$441 SGD
Retailer 1$445 SGD
Retailer 6$454 SGD
Retailer 9$457 SGD
Retailer 4$459 SGD
Retailer 8$480 SGD
Retailer 10$630 SGD
Retailer 2$657 SGD
Retailer 3$883 SGD
Retailer 11$1,036 SGD
Retailer 7$1,188 SGD
Reve Diamonds$1,361 SGD

39 data points across 14 retailers

14 retailers$228 SGD to $1,361 SGD

A
Cheapest Retailer
-
$228 SGD
$178 USD
Final sale: no returns
Retailer 2
-
$327 SGD
£201 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$441 SGD
$345 USD
View
A
Retailer 4
-
$445 SGD
£274 GBP
View
A
Retailer 5
-
$454 SGD
€338 EUR
View
A
Retailer 6
-
$457 SGD
ZAR 5,777 ZAR
View
A
Retailer 7
-
$459 SGD
$359 USD
View
A
Retailer 8
-
$480 SGD
£296 GBP
View
A
Retailer 9
-
$630 SGD
A$758 AUD
View
B+
Retailer 10
-
$657 SGD
$514 USD
View
B+
Retailer 11
-
$883 SGD
$691 USD
View
B+
Retailer 12
-
$1,036 SGD
$810 USD
View
B
Retailer 13
-
$1,188 SGD
£732 GBP
View
Most Expensive
B
Reve Diamonds
29DCB9CF4 · Oct 30
$1,361 SGD
$1,065 USD
View
13 more retailers have this diamond
Prices start from $228 SGDSave up to $1,133 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
0.99ct Cushion
$228 SGD