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Cushion|Lab Grown|IGI

1.59ct D SI1 Cushion Lab Grown Diamond

GD • D/SI1 • IGI LG570349113

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG570349113

Diamond specifications and retailer prices

From $317 SGD
$248 USD
As of October 30, 2026
Save $2,393 SGD (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,710 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.59ct lab-grown cushion diamond

This 1.59ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG570349113 or 570349113. Listed at 6 retailers as of October 30, 2026, with prices from $317 to $2,710, a $2,393 spread on the same certified stone. Do Amore Diamonds lists it at $2,710. 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

1.59
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570349113
Dimensions6.69 × 6.61 × 4.46 mm
L/W Ratio1.01
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
6.69 mm6.61 mm1.59 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570349113
Side View
Table 64.5%Crown 36.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 67.5%

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: $2,710 SGD|Low: $197 SGD|High: $2,710 SGD|Avg: $1,205 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 6$317 SGD
Retailer 4$598 SGD
Retailer 9$675 SGD
Retailer 8$749 SGD
Retailer 10$752 SGD
Retailer 11$925 SGD
Retailer 3$1,391 SGD
Retailer 2$1,559 SGD
Retailer 5$1,585 SGD
Retailer 7$1,930 SGD
Do Amore Diamonds$2,710 SGD

12 data points across 11 retailers

6 retailers$317 SGD to $2,710 SGD

A
Cheapest Retailer
-
$317 SGD
$248 USD
Final sale: no returns
B
Retailer 2
-
$598 SGD
$468 USD
View
B
Retailer 3
-
$1,559 SGD
£960 GBP
View
B
Retailer 4
-
$1,585 SGD
$1,240 USD
View
B
Retailer 5
-
$1,930 SGD
$1,510 USD
View
Most Expensive
C
Do Amore Diamonds
27-41238D730 · Oct 31
$2,710 SGD
$2,120 USD
View
5 more retailers have this diamond
Prices start from $317 SGDSave up to $2,393 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.

A
1.59ct Cushion
$317 SGD