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Cushion|Lab Grown|IGI

1.70ct H SI2 Cushion Lab Grown Diamond

ID • H/SI2 • IGI LG522253828

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG522253828

Diamond specifications and retailer prices

From $230 USD
As of November 6, 2026
Save $956 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,186 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.7ct lab-grown cushion diamond

This 1.7ct lab-grown cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522253828 or 522253828. Listed at 10 retailers as of November 5, 2026, with prices from $230 to $1,186, a $956 spread on the same certified stone. MOH London lists it at $1,186. 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

1.70
Carat
H
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522253828
Dimensions7.01 × 7.00 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.01 mm7.00 mm1.70 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522253828
Side View
Table 61.0%Crown 35.3°Girdle: THN-STKPavilion 40.1°Culet: NoneDepth 65.6%

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 6
Current: $1,186 USD|Low: $200 USD|High: $1,610 USD|Avg: $628 USD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$230 USD
Retailer 6$254 USD
Retailer 12$281 USD
Retailer 9$360 USD
Retailer 2$413 USD
Retailer 10$483 USD
Retailer 8$518 USD
Retailer 4$622 USD
Retailer 11$825 USD
Retailer 3$859 USD
Retailer 5$910 USD
MOH London$1,186 USD

19 data points across 12 retailers

10 retailers$230 USD to $1,186 USD

A
Cheapest Retailer
-
$230 USD
Final sale: no returns
Retailer 2
-
$254 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$281 USD
View
B+
Retailer 4
-
$360 USD
View
A
Retailer 5
-
$413 USD
View
A
Retailer 6
-
$483 USD
View
A
Retailer 7
-
$518 USD
View
B+
Retailer 8
-
$825 USD
View
B+
Retailer 9
-
$910 USD
View
Most Expensive
B+
MOH London
LG522253828 · Nov 5
$1,186 USD
£934 GBP
View
9 more retailers have this diamond
Prices start from $230 USDSave up to $956 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
1.70ct Cushion
$230 USD