Cushion|Lab Grown|IGI

1.02ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG851654220

Certificate IGI LG851654220

Diamond specifications and retailer prices

From $250 USD
As of November 1, 2026
Save $396 USD (61%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $646 USD at Taylor and Hart · As of November 1, 2026
View at Taylor and Hart

About this 1.02ct lab-grown cushion diamond

This 1.02ct 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 LG851654220 or 851654220. Listed at 2 retailers as of November 1, 2026, with prices from $250 to $646, a $396 spread on the same certified stone. Taylor and Hart lists it at $646. 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

1.02
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG851654220
Dimensions7.14 × 4.97 × 3.31 mm
L/W Ratio1.44
Top View
7.14 mm4.97 mm1.02 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851654220
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCuletDepth 66.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $250 USD|Low: $250 USD|High: $646 USD|Avg: $448 USD
Retailer 1
Taylor and Hart
November 1, 2026
Retailer 1$250 USD
Taylor and Hart$646 USD

1 data point across 2 retailers

2 retailers$250 USD to $646 USD

B+
Cheapest Retailer
-
$250 USD
Most Expensive
B
Taylor and Hart
PHIP7Q3 · Nov 1
$646 USD
View
1 more retailer has this diamond
Prices start from $250 USDSave up to $396 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.

B+
1.02ct Cushion
$250 USD