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Cushion|Lab Grown|IGI

1.30ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG570350845

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG570350845

Diamond specifications and retailer prices

From $602 SGD
$471 USD
As of November 1, 2026
Save $1,859 SGD (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,461 SGD at MOH London · As of October 29, 2026
View at MOH London

About this 1.3ct lab-grown cushion diamond

This 1.3ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG570350845 or 570350845. Listed at 8 retailers as of October 29, 2026, with prices from $602 to $2,461, a $1,859 spread on the same certified stone. MOH London lists it at $2,461. 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

1.30
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570350845
Dimensions6.27 × 6.25 × 4.27 mm
L/W Ratio1.00
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
6.27 mm6.25 mm1.30 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570350845
Side View
Table 60.5%Crown 37.8°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $2,461 SGD|Low: $430 SGD|High: $2,478 SGD|Avg: $1,100 SGD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7$602 SGD
Retailer 8$745 SGD
Retailer 4$748 SGD
Retailer 3$1,017 SGD
Retailer 6$1,051 SGD
Retailer 2$1,089 SGD
Retailer 5$1,272 SGD
MOH London$2,461 SGD

41 data points across 8 retailers

8 retailers$602 SGD to $2,461 SGD

B+
Cheapest Retailer
-
$602 SGD
$471 USD
Final sale: no returns
B+
Retailer 2
-
$745 SGD
$583 USD
View
B+
Retailer 3
-
$748 SGD
$585 USD
View
B
Retailer 4
-
$1,017 SGD
€758 EUR
View
B
Retailer 5
-
$1,051 SGD
$822 USD
View
B
Retailer 6
-
$1,089 SGD
£671 GBP
View
B
Retailer 7
-
$1,272 SGD
$995 USD
View
Most Expensive
B
MOH London
LG570350845 · Oct 29
$2,461 SGD
£1,516 GBP
View
7 more retailers have this diamond
Prices start from $602 SGDSave up to $1,859 SGD

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+
1.30ct Cushion
$602 SGD