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Cushion|Lab Grown|IGI

1.35ct D FL Cushion Lab Grown Diamond

EX • D/FL • IGI LG815697990

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

Certificate IGI LG815697990

Diamond specifications and retailer prices

From $900 SGD
$704 USD
As of November 1, 2026
Save $3,115 SGD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,016 SGD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.35ct lab-grown cushion diamond

This 1.35ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815697990 or 815697990. Listed at 8 retailers as of November 1, 2026, with prices from $900 to $4,016, a $3,115 spread on the same certified stone. Do Amore Diamonds lists it at $4,016. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815697990
Dimensions6.37 × 6.30 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.37 mm6.30 mm1.35 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815697990
Side View
Table 57.0%Crown 34.2°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 64.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,016 SGD|Low: $424 SGD|High: $5,116 SGD|Avg: $1,750 SGD|-11.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 7$424 SGD
Retailer 4$454 SGD
Retailer 12$900 SGD
Retailer 9$914 SGD
Retailer 5$960 SGD
Retailer 8$1,120 SGD
Retailer 15$1,139 SGD
Retailer 16$1,171 SGD
Retailer 3$1,279 SGD
Retailer 10$1,484 SGD
Retailer 13$1,708 SGD
Retailer 6$2,314 SGD
Retailer 2$2,422 SGD
Retailer 14$2,532 SGD
Retailer 11$2,941 SGD
Do Amore Diamonds$4,016 SGD

19 data points across 16 retailers

8 retailers$900 SGD to $4,016 SGD

A
Cheapest Retailer
-
$900 SGD
$704 USD
A
Retailer 2
-
$914 SGD
$715 USD
View
B+
Retailer 3
-
$1,484 SGD
$1,160 USD
View
B+
Retailer 4
-
$1,708 SGD
$1,336 USD
View
B+
Retailer 5
-
$2,422 SGD
£1,491 GBP
View
B
Retailer 6
-
$2,532 SGD
$1,980 USD
View
B+
Retailer 7
-
$2,941 SGD
$2,300 USD
View
Most Expensive
B
Do Amore Diamonds
27-79D2587DD · Nov 2
$4,016 SGD
$3,140 USD
View
7 more retailers have this diamond
Prices start from $900 SGDSave up to $3,115 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
1.35ct Cushion
$900 SGD