Cushion|Lab Grown|IGI

1.00ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG805644325

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG805644325

Diamond specifications and retailer prices

From $529 USD
As of November 1, 2026
Save $1,648 USD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,380 USD at Brilliant Earth · As of October 9, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct 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 LG805644325 or 805644325. Listed at 17 retailers as of October 31, 2026, with a 312% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805644325
Dimensions6.59 × 5.16 × 3.63 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.59 mm5.16 mm1.00 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805644325
Side View
Table 61.0%Crown 33.3°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 70.3%

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: Nov 1
Current: $2,380 USD|Low: $529 USD|High: $2,450 USD|Avg: $1,219 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 7$529 USD
Retailer 8$635 USD
Retailer 5$801 USD
Retailer 6$895 USD
Retailer 2$966 USD
Retailer 12$1,009 USD
Retailer 4$1,350 USD
Retailer 3$1,365 USD
Retailer 10$1,423 USD
Retailer 11$1,430 USD
Retailer 13$2,159 USD
Retailer 9$2,177 USD
Brilliant Earth$2,380 USD

40 data points across 13 retailers

17 retailers$529 USD to $2,177 USD

A
Cheapest Retailer
-
$529 USD
Final sale: no returns
A
Retailer 2
-
$635 USD
View
A
Retailer 3
-
$635 USD
View
B+
Retailer 4
-
$788 USD
View
B+
Retailer 5
-
$801 USD
View
B+
Retailer 6
-
$895 USD
€852 EUR
View
B+
Retailer 7
-
$966 USD
£760 GBP
View
B+
Retailer 8
-
$1,009 USD
ZAR 16,294 ZAR
View
Retailer 9
-
$1,350 USD
View
Price last confirmed 17 days ago
B
Retailer 10
-
$1,365 USD
View
B
Retailer 11
-
$1,423 USD
A$2,189 AUD
View
B
Retailer 12
-
$1,430 USD
A$2,200 AUD
View
B
Retailer 13
-
$1,916 USD
View
B
Retailer 14
-
$2,066 USD
View
B
Retailer 15
-
$2,159 USD
£1,700 GBP
View
B
Retailer 16
-
$2,177 USD
View
Most Expensive
Brilliant Earth
20195445A · Oct 9
$2,380 USD
View
Price last confirmed 23 days ago
16 more retailers have this diamond
Prices start from $529 USDSave up to $1,648 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
1.00ct Cushion
$529 USD