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Round|Lab Grown|IGI

1.21ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG447099659

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099659

Diamond specifications and retailer prices

From ₹50,074 INR
As of November 5, 2026
Save ₹3,80,568 INR (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: ₹4,30,643 INR at MOH London · As of November 5, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099659 or 447099659. Listed at 13 retailers as of November 5, 2026, with prices from ₹50,074 to ₹4,30,643, a ₹3,80,568 spread on the same certified stone. MOH London lists it at ₹4,30,643. 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

1.21
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099659
Dimensions6.94 × 6.96 × 4.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.94 mm6.96 mm1.21 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099659
Side View
Table 56.5%Crown 33.3°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
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 5
Current: ₹4,30,643 INR|Low: ₹50,074 INR|High: ₹4,37,482 INR|Avg: ₹2,01,307 INR|-1.3%
MOH London
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
November 6, 2026
Retailer 9₹50,074 INR
Retailer 8₹1,30,288 INR
Retailer 13₹1,41,814 INR
Retailer 3₹1,45,877 INR
Retailer 10₹1,51,168 INR
Retailer 12₹1,51,168 INR
Retailer 4₹1,67,230 INR
Retailer 2₹1,96,707 INR
Retailer 5₹2,05,588 INR
Retailer 11₹2,38,656 INR
Retailer 7₹2,58,214 INR
Retailer 6₹2,74,370 INR
Retailer 14₹2,83,346 INR
MOH London₹4,30,643 INR

44 data points across 14 retailers

13 retailers₹50,074 INR to ₹4,30,643 INR

A
Cheapest Retailer
-
₹50,074 INR
B+
Retailer 2
-
₹1,30,288 INR
View
B+
Retailer 3
-
₹1,41,814 INR
View
B+
Retailer 4
-
₹1,45,877 INR
View
Final sale: no returns
B+
Retailer 5
-
₹1,51,168 INR
View
Retailer 6
-
₹1,51,168 INR
View
Price last confirmed 25 days ago
B
Retailer 7
-
₹1,67,230 INR
View
B+
Retailer 8
-
₹1,96,707 INR
View
B
Retailer 9
-
₹2,38,656 INR
View
Retailer 10
-
₹2,58,214 INR
View
Price last confirmed 8 days ago
B
Retailer 11
-
₹2,74,370 INR
View
B
Retailer 12
-
₹2,83,346 INR
View
Most Expensive
B
MOH London
LG447099659 · Nov 5
₹4,30,643 INR
£3,589 GBP
View
12 more retailers have this diamond
Prices start from ₹50,074 INRSave up to ₹3,80,568 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
1.21ct Round
₹50,074 INR