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Cushion|Lab Grown|IGI

1.72ct I SI1 Cushion Lab Grown Diamond

ID • I/SI1 • IGI LG425067665

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG425067665

Diamond specifications and retailer prices

From $960 USD
As of October 31, 2026
Save $3,949 USD (80%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $4,909 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.72ct lab-grown cushion diamond

This 1.72ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067665 or 425067665. Listed at 6 retailers as of October 31, 2026, with prices from $960 to $4,909, a $3,949 spread on the same certified stone. MOH London lists it at $4,909. 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

1.72
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067665
Dimensions7.30 × 7.03 × 4.64 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.30 mm7.03 mm1.72 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067665
Side View
Table 59.5%Crown 37.2°Girdle: THK-VTKPavilion 40.7°Culet: NoneDepth 66.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $4,909 USD|Low: $960 USD|High: $4,975 USD|Avg: $2,736 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2$960 USD
Retailer 5$1,659 USD
Retailer 3$1,719 USD
Retailer 6$1,890 USD
Retailer 7$2,338 USD
Retailer 4$2,708 USD
MOH London$4,909 USD
Retailer 8$4,921 USD

15 data points across 8 retailers

6 retailers$960 USD to $4,909 USD

A
Cheapest Retailer
-
$960 USD
B
Retailer 2
-
$1,659 USD
View
Final sale: no returns
Retailer 3
-
$1,719 USD
View
Price last confirmed 20 days ago
B
Retailer 4
-
$1,890 USD
View
B
Retailer 5
-
$2,708 USD
View
Most Expensive
B
MOH London
LG425067665 · Nov 1
$4,909 USD
£3,865 GBP
View
5 more retailers have this diamond
Prices start from $960 USDSave up to $3,949 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
1.72ct Cushion
$960 USD