Cushion|Lab Grown|IGI

0.99ct D IF Cushion Lab Grown Diamond

GD • D/IF • IGI LG667417967

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG667417967

Diamond specifications and retailer prices

From $347 USD
As of November 1, 2026
Save $1,633 USD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,980 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG667417967 or 667417967. Listed at 14 retailers as of October 31, 2026, with prices from $347 to $1,980, a $1,633 spread on the same certified stone. Brilliant Earth lists it at $1,980. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.99
Carat
D
Color
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.3°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667417967
Dimensions6.60 × 5.08 × 3.48 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.60 mm5.08 mm0.99 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG667417967
Side View
Table 72.0%Crown 40.3°Girdle: STK-THKPavilion 36.4°Culet: NoneDepth 68.5%

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: Nov 1
Current: $1,980 USD|Low: $347 USD|High: $1,980 USD|Avg: $845 USD|+0.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$347 USD
Retailer 9$385 USD
Retailer 8$518 USD
Retailer 3$601 USD
Retailer 2$680 USD
Retailer 4$696 USD
Retailer 7$995 USD
Retailer 6$1,135 USD
Retailer 5$1,551 USD
Brilliant Earth$1,980 USD

42 data points across 10 retailers

14 retailers$347 USD to $1,980 USD

A
Cheapest Retailer
-
$347 USD
Final sale: no returns
Retailer 2
-
$385 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$518 USD
View
A
Retailer 4
-
$524 USD
View
A
Retailer 5
-
$601 USD
€572 EUR
View
A
Retailer 6
-
$680 USD
£535 GBP
View
A
Retailer 7
-
$696 USD
ZAR 11,249 ZAR
View
B+
Retailer 8
-
$995 USD
View
Retailer 9
-
$1,135 USD
View
Price last confirmed 13 days ago
B
Retailer 10
-
$1,284 USD
View
B
Retailer 11
-
$1,381 USD
View
B
Retailer 12
-
$1,546 USD
View
Retailer 13
-
$1,551 USD
£1,221 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
16913287A · Oct 31
$1,980 USD
View
13 more retailers have this diamond
Prices start from $347 USDSave up to $1,633 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
$347 USD