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Cushion|Lab Grown|IGI

1.59ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG455010380

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

Certificate IGI LG455010380

Diamond specifications and retailer prices

From $514 SGD
$401 USD
As of October 29, 2026
Save $2,549 SGD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,063 SGD at Do Amore Diamonds · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455010380 or 455010380. Listed at 9 retailers as of October 29, 2026, with prices from $514 to $3,063, a $2,549 spread on the same certified stone. Do Amore Diamonds lists it at $3,063. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.59
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455010380
Dimensions6.76 × 6.74 × 4.60 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
6.76 mm6.74 mm1.59 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455010380
Side View
Table 60.0%Crown 35.3°Girdle: STK-VTKPavilion 40.8°Culet: NoneDepth 68.2%

Caratlytics Score

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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: Oct 29
Current: $3,063 SGD|Low: $514 SGD|High: $3,063 SGD|Avg: $1,258 SGD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 4$514 SGD
Retailer 5$709 SGD
Retailer 2$834 SGD
Retailer 7$1,140 SGD
Retailer 8$1,533 SGD
Retailer 6$1,728 SGD
Retailer 3$1,901 SGD
Do Amore Diamonds$3,063 SGD

34 data points across 8 retailers

9 retailers$514 SGD to $3,063 SGD

A
Cheapest Retailer
-
$514 SGD
$401 USD
A
Retailer 2
-
$628 SGD
$490 USD
View
B+
Retailer 3
-
$709 SGD
$553 USD
View
B+
Retailer 4
-
$834 SGD
£512 GBP
View
B+
Retailer 5
-
$1,140 SGD
$889 USD
View
B
Retailer 6
-
$1,533 SGD
$1,196 USD
View
B
Retailer 7
-
$1,728 SGD
$1,348 USD
View
B
Retailer 8
-
$1,901 SGD
£1,168 GBP
View
Most Expensive
B
Do Amore Diamonds
27-363F4265B · Oct 29
$3,063 SGD
$2,390 USD
View
8 more retailers have this diamond
Prices start from $514 SGDSave up to $2,549 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
$514 SGD