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Cushion|Lab Grown|IGI

1.71ct D SI2 Cushion Lab Grown Diamond

GD • D/SI2 • IGI LG478104336

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG478104336

Diamond specifications and retailer prices

From $264 USD
As of October 30, 2026
Save $1,327 USD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,591 USD at MOH London · As of October 25, 2026
View at MOH London

About this 1.71ct lab-grown cushion diamond

This 1.71ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG478104336 or 478104336. Listed at 9 retailers as of October 25, 2026, with prices from $264 to $1,591, a $1,327 spread on the same certified stone. MOH London lists it at $1,591. 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

1.71
Carat
D
Color
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478104336
Dimensions7.90 × 6.45 × 4.42 mm
L/W Ratio1.22
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
7.90 mm6.45 mm1.71 ctD / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478104336
Side View
Table 59.5%Crown 32.5°Girdle: MED-STKPavilion 38.4°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
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: Oct 30
Current: $1,591 USD|Low: $264 USD|High: $1,591 USD|Avg: $761 USD|+23.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8$264 USD
Retailer 3$359 USD
Retailer 4$434 USD
Retailer 5$563 USD
Retailer 2$702 USD
Retailer 7$961 USD
Retailer 6$1,471 USD
MOH London$1,591 USD

40 data points across 8 retailers

9 retailers$264 USD to $1,591 USD

A
Cheapest Retailer
-
$264 USD
Final sale: no returns
B+
Retailer 2
-
$359 USD
View
B+
Retailer 3
-
$434 USD
View
B+
Retailer 4
-
$563 USD
View
B+
Retailer 5
-
$702 USD
£553 GBP
View
B
Retailer 6
-
$961 USD
View
B
Retailer 7
-
$970 USD
CA$1,347 CAD
View
B
Retailer 8
-
$1,471 USD
SGD 1,988 SGD
View
Most Expensive
C
MOH London
LG478104336 · Oct 25
$1,591 USD
£1,253 GBP
View
8 more retailers have this diamond
Prices start from $264 USDSave up to $1,327 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
1.71ct Cushion
$264 USD