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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 $253 AUD
$178 USD
As of October 30, 2026
Save $1,262 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,516 AUD 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 $253 to $1,516, a $1,262 spread on the same certified stone. Reve Diamonds lists it at $1,516. 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

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 30
Current: $496 AUD|Low: $253 AUD|High: $1,522 AUD|Avg: $729 AUD|+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 31, 2026
Retailer 13$253 AUD
Retailer 12$364 AUD
Retailer 5$491 AUD
Retailer 1$496 AUD
Retailer 6$505 AUD
Retailer 9$509 AUD
Retailer 4$511 AUD
Retailer 8$535 AUD
Retailer 10$701 AUD
Retailer 2$732 AUD
Retailer 3$984 AUD
Retailer 11$1,153 AUD
Retailer 7$1,323 AUD
Reve Diamonds$1,516 AUD

40 data points across 14 retailers

14 retailers$253 AUD to $1,516 AUD

A
Cheapest Retailer
-
$253 AUD
$178 USD
Final sale: no returns
Retailer 2
-
$364 AUD
£201 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
$491 AUD
$345 USD
View
A
Retailer 4
-
$496 AUD
£274 GBP
View
A
Retailer 5
-
$505 AUD
€338 EUR
View
A
Retailer 6
-
$509 AUD
ZAR 5,777 ZAR
View
A
Retailer 7
-
$511 AUD
$359 USD
View
A
Retailer 8
-
$535 AUD
£296 GBP
View
A
Retailer 9
-
$701 AUD
View
B+
Retailer 10
-
$732 AUD
$514 USD
View
B+
Retailer 11
-
$984 AUD
$691 USD
View
B+
Retailer 12
-
$1,153 AUD
$810 USD
View
B
Retailer 13
-
$1,323 AUD
£732 GBP
View
Most Expensive
B
Reve Diamonds
29DCB9CF4 · Oct 30
$1,516 AUD
$1,065 USD
View
13 more retailers have this diamond
Prices start from $253 AUDSave up to $1,262 AUD

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
$253 AUD