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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 $178 USD
As of October 30, 2026
Save $887 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,065 USD 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 $178 to $1,065, a $887 spread on the same certified stone. Reve Diamonds lists it at $1,065. 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
Color
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

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: $348 USD|Low: $178 USD|High: $1,069 USD|Avg: $512 USD|+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$178 USD
Retailer 12$256 USD
Retailer 5$345 USD
Retailer 1$348 USD
Retailer 6$355 USD
Retailer 9$358 USD
Retailer 4$359 USD
Retailer 8$376 USD
Retailer 10$493 USD
Retailer 2$514 USD
Retailer 3$691 USD
Retailer 11$810 USD
Retailer 7$930 USD
Reve Diamonds$1,065 USD

40 data points across 14 retailers

14 retailers$178 USD to $1,065 USD

A
Cheapest Retailer
-
$178 USD
Final sale: no returns
Retailer 2
-
$256 USD
£201 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
$345 USD
View
A
Retailer 4
-
$348 USD
£274 GBP
View
A
Retailer 5
-
$355 USD
€338 EUR
View
A
Retailer 6
-
$358 USD
ZAR 5,777 ZAR
View
A
Retailer 7
-
$359 USD
View
A
Retailer 8
-
$376 USD
£296 GBP
View
A
Retailer 9
-
$493 USD
A$758 AUD
View
B+
Retailer 10
-
$514 USD
View
B+
Retailer 11
-
$691 USD
View
B+
Retailer 12
-
$810 USD
View
B
Retailer 13
-
$930 USD
£732 GBP
View
Most Expensive
B
Reve Diamonds
29DCB9CF4 · Oct 30
$1,065 USD
View
13 more retailers have this diamond
Prices start from $178 USDSave up to $887 USD

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
$178 USD