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Cushion|Lab Grown|IGI

1.18ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG821651756

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG821651756

Diamond specifications and retailer prices

From $361 USD
As of November 4, 2026
Save $1,284 USD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,645 USD at Novita Diamonds · As of October 30, 2026
View at Novita Diamonds

About this 1.18ct lab-grown cushion diamond

This 1.18ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG821651756 or 821651756. Listed at 12 retailers as of October 30, 2026, with prices from $361 to $1,645, a $1,284 spread on the same certified stone. Novita Diamonds lists it at $1,645. 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

1.18
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821651756
Dimensions7.40 × 5.36 × 3.64 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm5.36 mm1.18 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821651756
Side View
Table 66.0%Crown 40.1°Girdle: MED-STKPavilion 34.4°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: Nov 4
Current: $1,645 USD|Low: $361 USD|High: $1,670 USD|Avg: $901 USD
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 8$361 USD
Retailer 10$542 USD
Retailer 11$550 USD
Retailer 12$624 USD
Retailer 4$696 USD
Retailer 2$710 USD
Retailer 3$762 USD
Retailer 9$986 USD
Retailer 7$1,335 USD
Retailer 5$1,446 USD
Retailer 6$1,604 USD
Novita Diamonds$1,645 USD

23 data points across 12 retailers

12 retailers$361 USD to $1,645 USD

A
Cheapest Retailer
-
$361 USD
Final sale: no returns
A
Retailer 2
-
$542 USD
View
A
Retailer 3
-
$550 USD
View
A
Retailer 4
-
$624 USD
View
A
Retailer 5
-
$696 USD
View
A
Retailer 6
-
$710 USD
View
A
Retailer 7
-
$762 USD
View
B+
Retailer 8
-
$986 USD
View
B+
Retailer 9
-
$1,335 USD
View
B+
Retailer 10
-
$1,446 USD
View
B
Retailer 11
-
$1,604 USD
View
Most Expensive
B
Novita Diamonds
cert_821651756 · Oct 30
$1,645 USD
A$2,530 AUD
View
11 more retailers have this diamond
Prices start from $361 USDSave up to $1,284 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
1.18ct Cushion
$361 USD