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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 €236 EUR
$264 USD
As of October 30, 2026
Save €1,188 EUR (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,424 EUR 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 €236 to €1,424, a €1,188 spread on the same certified stone. MOH London lists it at €1,424. 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: Oct 30
Current: €1,424 EUR|Low: €236 EUR|High: €1,424 EUR|Avg: €680 EUR|+23.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8€236 EUR
Retailer 3€321 EUR
Retailer 4€388 EUR
Retailer 5€504 EUR
Retailer 2€633 EUR
Retailer 7€861 EUR
Retailer 6€1,317 EUR
MOH London€1,424 EUR

39 data points across 8 retailers

9 retailers€236 EUR to €1,424 EUR

A
Cheapest Retailer
-
€236 EUR
$264 USD
Final sale: no returns
B+
Retailer 2
-
€321 EUR
$359 USD
View
B+
Retailer 3
-
€388 EUR
$434 USD
View
B+
Retailer 4
-
€504 EUR
$563 USD
View
B+
Retailer 5
-
€633 EUR
£557 GBP
View
B
Retailer 6
-
€861 EUR
$961 USD
View
B
Retailer 7
-
€868 EUR
CA$1,347 CAD
View
B
Retailer 8
-
€1,317 EUR
SGD 1,988 SGD
View
Most Expensive
C
MOH London
LG478104336 · Oct 25
€1,424 EUR
£1,253 GBP
View
8 more retailers have this diamond
Prices start from €236 EURSave up to €1,188 EUR

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
€236 EUR