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Cushion|Lab Grown|IGI

1.59ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG539216557

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG539216557

Diamond specifications and retailer prices

From ₹20,699 INR
$218 USD
As of October 30, 2026
Save ₹93,241 INR (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: ₹1,13,940 INR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 top-tier cut grade and certified by IGI LG539216557 or 539216557. Listed at 12 retailers as of October 30, 2026, with prices from ₹20,699 to ₹1,13,940, a ₹93,241 spread on the same certified stone. Brilliant Earth lists it at ₹1,13,940. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539216557
Dimensions6.48 × 6.35 × 4.35 mm
L/W Ratio1.02
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
6.48 mm6.35 mm1.59 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539216557
Side View
Table 57.5%Crown 37.3°Girdle: STK-VTKPavilion 32.9°Culet: NoneDepth 68.5%

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 30
Current: ₹1,13,940 INR|Low: ₹20,699 INR|High: ₹1,29,132 INR|Avg: ₹58,302 INR|-11.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 8₹20,699 INR
Retailer 6₹31,144 INR
Retailer 2₹37,885 INR
Retailer 3₹41,827 INR
Retailer 9₹46,499 INR
Retailer 7₹54,881 INR
Retailer 4₹55,641 INR
Retailer 5₹1,08,528 INR
Brilliant Earth₹1,13,940 INR

42 data points across 9 retailers

12 retailers₹20,699 INR to ₹1,13,940 INR

A
Cheapest Retailer
-
₹20,699 INR
$218 USD
Final sale: no returns
B+
Retailer 2
-
₹31,144 INR
$328 USD
View
A
Retailer 3
-
₹37,885 INR
€380 EUR
View
A
Retailer 4
-
₹41,827 INR
£347 GBP
View
A
Retailer 5
-
₹46,499 INR
$490 USD
View
A
Retailer 6
-
₹50,798 INR
$535 USD
View
B+
Retailer 7
-
₹54,881 INR
$578 USD
View
A
Retailer 8
-
₹55,641 INR
$586 USD
View
B
Retailer 9
-
₹79,297 INR
$835 USD
View
B
Retailer 10
-
₹1,08,528 INR
£900 GBP
View
B
Retailer 11
-
₹1,12,138 INR
$1,181 USD
View
Most Expensive
B
Brilliant Earth
10789149A · Oct 30
₹1,13,940 INR
$1,200 USD
View
11 more retailers have this diamond
Prices start from ₹20,699 INRSave up to ₹93,241 INR

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
₹20,699 INR