Cushion|Lab Grown|IGI

3.51ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG826674126

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826674126

Diamond specifications and retailer prices

From ₹57,098 INR

HK$4,700 HKD

As of November 1, 2026

Save ₹2,21,938 INR (80%) vs most expensive(unlock to see where)

11 retailers carry this diamond

Most expensive: ₹2,79,035 INR at Brilliant Earth · As of November 2, 2026

View at Brilliant Earth

About this 3.51ct lab-grown cushion diamond

This 3.51ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG826674126 or 826674126. Listed at 11 retailers as of November 1, 2026, with prices from ₹57,098 to ₹2,79,035, a ₹2,21,938 spread on the same certified stone. Brilliant Earth lists it at ₹2,79,035. 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

3.51

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35°

Pavilion angle30.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG826674126

Dimensions10.14 × 7.69 × 5.03 mm

L/W Ratio1.32

Girdle conditionFaceted

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG826674126

Side View

Caratlytics Score

How it works →

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: Nov 1

Current: ₹2,79,035 INR|Low: ₹57,098 INR|High: ₹2,79,985 INR|Avg: ₹1,35,097 INR|-0.3%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

Retailer 11

November 2, 2026

Retailer 5₹57,098 INR

Retailer 11₹63,590 INR

Retailer 6₹65,314 INR

Retailer 2₹79,027 INR

Retailer 10₹83,236 INR

Retailer 7₹87,472 INR

Retailer 3₹1,24,427 INR

Retailer 4₹1,27,179 INR

Retailer 8₹1,95,629 INR

Retailer 9₹2,55,308 INR

Brilliant Earth₹2,79,035 INR

38 data points across 11 retailers

11 retailers₹57,098 INR to ₹2,79,035 INR

Cheapest Retailer

₹57,098 INR

HK$4,700 HKD

Retailer 2

₹63,590 INR

$670 USD

View

Price last confirmed 5 days ago

Retailer 3

₹65,314 INR

£542 GBP

View

Retailer 4

₹79,027 INR

€793 EUR

View

Retailer 5

₹83,236 INR

$877 USD

View

Price last confirmed 7 days ago

Retailer 6

₹87,472 INR

£726 GBP

View

Retailer 7

₹1,24,427 INR

$1,311 USD

View

B+

Retailer 8

₹1,27,179 INR

$1,340 USD

View

B+

Retailer 9

₹1,95,629 INR

£1,623 GBP

View

Retailer 10

₹2,55,308 INR

$2,690 USD

View

Most Expensive

Brilliant Earth

21013372A · Nov 2

₹2,79,035 INR

$2,940 USD

View

10 more retailers have this diamond

Prices start from ₹57,098 INRSave up to ₹2,21,938 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.

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3.51ct Cushion

₹57,098 INR