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Cushion|Lab Grown|IGI

1.87ct J SI1 Cushion Lab Grown Diamond

GD • J/SI1 • IGI LG436046697

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG436046697

Diamond specifications and retailer prices

From $2,851 AUD
$2,003 USD
As of November 1, 2026
Save $5,586 AUD (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,438 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.87ct lab-grown cushion diamond

This 1.87ct lab-grown cushion sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG436046697 or 436046697. Listed at 5 retailers as of November 1, 2026, with prices from $2,851 to $8,438, a $5,586 spread on the same certified stone. MOH London lists it at $8,438. 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

1.87
Carat
J
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.6°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046697
Dimensions7.39 × 7.29 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.39 mm7.29 mm1.87 ctJ / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436046697
Side View
Table 62.0%Crown 35.6°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,438 AUD|Low: $2,851 AUD|High: $8,539 AUD|Avg: $4,701 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$2,851 AUD
Retailer 3$2,954 AUD
Retailer 8$2,988 AUD
Retailer 2$3,032 AUD
Retailer 6$3,941 AUD
Retailer 4$4,634 AUD
MOH London$8,438 AUD
Retailer 7$8,460 AUD

14 data points across 8 retailers

5 retailers$2,851 AUD to $8,438 AUD

B+
Cheapest Retailer
-
$2,851 AUD
$2,003 USD
Final sale: no returns
Retailer 2
-
$2,954 AUD
$2,075 USD
View
Price last confirmed 20 days ago
B+
Retailer 3
-
$3,032 AUD
$2,130 USD
View
B
Retailer 4
-
$4,634 AUD
$3,255 USD
View
Most Expensive
C
MOH London
LG436046697 · Nov 1
$8,438 AUD
£4,667 GBP
View
4 more retailers have this diamond
Prices start from $2,851 AUDSave up to $5,586 AUD

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.

B+
1.87ct Cushion
$2,851 AUD