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Round|Lab Grown|IGI

1.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG770643638

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770643638

Diamond specifications and retailer prices

From ₹23,526 INR
As of November 4, 2026
Save ₹96,370 INR (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: ₹1,34,162 INR at Brilliant Earth · As of October 16, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770643638 or 770643638. Listed at 22 retailers as of November 4, 2026, with a 410% 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770643638
Dimensions7.36 × 7.31 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.36 mm7.31 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770643638
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: ₹1,34,162 INR|Low: ₹20,124 INR|High: ₹1,34,162 INR|Avg: ₹58,960 INR
Brilliant Earth
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 9₹21,164 INR
Retailer 16₹23,526 INR
Retailer 5₹26,171 INR
Retailer 17₹26,171 INR
Retailer 3₹41,099 INR
Retailer 6₹44,689 INR
Retailer 2₹45,350 INR
Retailer 11₹47,807 INR
Retailer 12₹48,185 INR
Retailer 4₹50,169 INR
Retailer 18₹54,515 INR
Retailer 14₹68,970 INR
Retailer 10₹84,276 INR
Retailer 15₹84,560 INR
Retailer 8₹89,189 INR
Retailer 13₹1,04,684 INR
Retailer 7₹1,19,895 INR
Brilliant Earth₹1,34,162 INR

41 data points across 18 retailers

22 retailers₹23,526 INR to ₹1,19,895 INR

Retailer 1
-
₹21,164 INR
Price last confirmed 19 days ago
A
Retailer 2
-
₹23,526 INR
View
Final sale: no returns
Retailer 3
-
₹24,281 INR
View
Price last confirmed 24 days ago
A
Retailer 4
-
₹24,565 INR
View
Retailer 5
-
₹26,171 INR
View
Price last confirmed 12 days ago
Retailer 6
-
₹26,171 INR
View
Price last confirmed 21 days ago
A
Retailer 7
-
₹41,099 INR
View
A
Retailer 8
-
₹44,689 INR
View
A
Retailer 9
-
₹45,350 INR
View
A
Retailer 10
-
₹47,807 INR
View
A
Retailer 11
-
₹48,185 INR
View
B+
Retailer 12
-
₹50,169 INR
View
B+
Retailer 13
-
₹54,515 INR
View
B+
Retailer 14
-
₹68,970 INR
View
B
Retailer 15
-
₹72,844 INR
View
Retailer 16
-
₹83,520 INR
View
Price last confirmed 46 days ago
Retailer 17
-
₹84,276 INR
View
Price last confirmed 19 days ago
B
Retailer 18
-
₹84,560 INR
View
B
Retailer 19
-
₹89,189 INR
View
B
Retailer 20
-
₹1,04,684 INR
View
B
Retailer 21
-
₹1,19,895 INR
View
Most Expensive
Brilliant Earth
19882042A · Oct 16
₹1,34,162 INR
$1,420 USD
View
Price last confirmed 21 days ago
21 more retailers have this diamond
Prices start from ₹23,526 INRSave up to ₹96,370 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
₹23,526 INR