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Cushion|Lab Grown|IGI

1.01ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG603345567

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG603345567

Diamond specifications and retailer prices

From $244 USD
As of November 1, 2026
Save $1,009 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,253 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.01ct lab-grown cushion diamond

This 1.01ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG603345567 or 603345567. Listed at 10 retailers as of November 1, 2026, with prices from $244 to $1,253, a $1,009 spread on the same certified stone. Reve Diamonds lists it at $1,253. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.01
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603345567
Dimensions5.73 × 5.63 × 3.45 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.73 mm5.63 mm1.01 ctD / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG603345567
Side View
Table 63.0%Crown 36.4°Girdle: STK-VTKPavilion 32.1°Culet: NoneDepth 61.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,086 USD|Low: $244 USD|High: $1,253 USD|Avg: $591 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Reve Diamonds
November 1, 2026
Retailer 6$244 USD
Retailer 4$271 USD
Retailer 9$307 USD
Retailer 7$345 USD
Retailer 3$464 USD
Retailer 2$499 USD
Retailer 5$505 USD
Retailer 8$924 USD
Retailer 1$1,086 USD
Reve Diamonds$1,253 USD

40 data points across 10 retailers

10 retailers$244 USD to $1,253 USD

A
Cheapest Retailer
-
$244 USD
Final sale: no returns
Retailer 2
-
$271 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$307 USD
HK$2,400 HKD
View
A
Retailer 4
-
$345 USD
View
B+
Retailer 5
-
$464 USD
View
B+
Retailer 6
-
$499 USD
£393 GBP
View
B
Retailer 7
-
$505 USD
View
B
Retailer 8
-
$924 USD
View
B
Retailer 9
-
$1,086 USD
£855 GBP
View
Most Expensive
B
Reve Diamonds
3BAB54655 · Nov 1
$1,253 USD
View
9 more retailers have this diamond
Prices start from $244 USDSave up to $1,009 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
1.01ct Cushion
$244 USD