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Round|Lab Grown|IGI

1.51ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG731538751

Shape and cutting style on the report: Round brilliant

Certificate IGI LG731538751

Diamond specifications and retailer prices

From ₹19,841 INR
As of November 5, 2026
Save ₹95,992 INR (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: ₹1,49,278 INR at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round 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 LG731538751 or 731538751. Listed at 20 retailers as of November 5, 2026, with a 484% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731538751
Dimensions7.31 × 7.27 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.31 mm7.27 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731538751
Side View
Table 56.0%Crown 36°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.8%

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 5
Current: ₹1,49,278 INR|Low: ₹19,085 INR|High: ₹1,49,278 INR|Avg: ₹54,379 INR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10₹19,841 INR
Retailer 3₹24,659 INR
Retailer 11₹33,257 INR
Retailer 2₹38,170 INR
Retailer 7₹40,815 INR
Retailer 4₹44,972 INR
Retailer 9₹54,515 INR
Retailer 8₹60,089 INR
Retailer 6₹71,805 INR
Retailer 5₹98,448 INR
Brilliant Earth₹1,49,278 INR

41 data points across 11 retailers

20 retailers₹19,841 INR to ₹1,15,832 INR

A
Cheapest Retailer
-
₹19,841 INR
A
Retailer 2
-
₹22,203 INR
View
Final sale: no returns
A
Retailer 3
-
₹23,053 INR
View
Retailer 4
-
₹24,659 INR
View
Price last confirmed 12 days ago
A
Retailer 5
-
₹24,659 INR
View
B+
Retailer 6
-
₹33,257 INR
View
A
Retailer 7
-
₹38,170 INR
View
A
Retailer 8
-
₹40,815 INR
View
A
Retailer 9
-
₹41,855 INR
View
A
Retailer 10
-
₹44,972 INR
View
B+
Retailer 11
-
₹48,752 INR
View
B+
Retailer 12
-
₹54,515 INR
View
B+
Retailer 13
-
₹60,089 INR
View
B
Retailer 14
-
₹71,805 INR
View
B
Retailer 15
-
₹79,269 INR
View
Retailer 16
-
₹79,552 INR
View
Price last confirmed 9 days ago
B
Retailer 17
-
₹84,182 INR
View
B
Retailer 18
-
₹98,448 INR
View
B
Retailer 19
-
₹1,15,832 INR
View
Most Expensive
Brilliant Earth
16956960A · Oct 18
₹1,49,278 INR
$1,580 USD
View
Price last confirmed 18 days ago
19 more retailers have this diamond
Prices start from ₹19,841 INRSave up to ₹95,992 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
1.51ct Round
₹19,841 INR