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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 $476 NZD
As of November 6, 2026
Save $2,374 NZD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,850 NZD at MOH London · As of November 7, 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 November 6, 2026, with prices from $476 to $2,850, a $2,374 spread on the same certified stone. MOH London lists it at $2,850. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,850 NZD|Low: $476 NZD|High: $2,871 NZD|Avg: $1,391 NZD|+22.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$476 NZD
Retailer 3$648 NZD
Retailer 4$783 NZD
Retailer 5$1,016 NZD
Retailer 2$1,263 NZD
Retailer 7$1,734 NZD
Retailer 6$2,654 NZD
MOH London$2,850 NZD

41 data points across 8 retailers

9 retailers$476 NZD to $2,850 NZD

A
Cheapest Retailer
-
$476 NZD
Final sale: no returns
B+
Retailer 2
-
$648 NZD
View
B+
Retailer 3
-
$783 NZD
View
B+
Retailer 4
-
$1,016 NZD
View
B+
Retailer 5
-
$1,263 NZD
View
B
Retailer 6
-
$1,734 NZD
View
B
Retailer 7
-
$1,748 NZD
View
B
Retailer 8
-
$2,654 NZD
View
Most Expensive
C
MOH London
LG478104336 · Nov 7
$2,850 NZD
£1,244 GBP
View
8 more retailers have this diamond
Prices start from $476 NZDSave up to $2,374 NZD

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
$476 NZD