Round|Lab Grown|IGI

1.21ct H VS2 Round Lab Grown Diamond

EX • H/VS2 • IGI LG728521477

Shape and cutting style on the report: Round brilliant

Certificate IGI LG728521477

Diamond specifications and retailer prices

From $423 USD
€403 EUR
As of October 31, 2026
Save $626 USD (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,049 USD at MOH London · As of October 26, 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 H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG728521477 or 728521477. Listed at 8 retailers as of October 26, 2026, with prices from $423 to $1,049, a $626 spread on the same certified stone. MOH London lists it at $1,049. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
H
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728521477
Dimensions6.79 × 6.76 × 4.25 mm
L/W Ratio1.00
Culet sizePointed
Top View
6.79 mm6.76 mm1.21 ctH / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728521477
Side View
Table 57.0%Crown 35.2°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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: Oct 31
Current: $1,049 USD|Low: $294 USD|High: $1,059 USD|Avg: $582 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7$294 USD
Retailer 2$423 USD
Retailer 6$427 USD
Retailer 4$451 USD
Retailer 10$500 USD
Retailer 5$504 USD
Retailer 3$515 USD
Retailer 9$791 USD
Retailer 8$893 USD
MOH London$1,049 USD

18 data points across 10 retailers

8 retailers$423 USD to $1,049 USD

Retailer 1
-
$294 USD
HK$2,300 HKD
Price last confirmed 57 days ago
A
Retailer 2
-
$423 USD
€403 EUR
View
A
Retailer 3
-
$427 USD
View
B+
Retailer 4
-
$451 USD
View
B+
Retailer 5
-
$504 USD
View
Retailer 6
-
$515 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$893 USD
View
Price last confirmed 13 days ago
Most Expensive
B
MOH London
LG728521477 · Oct 26
$1,049 USD
£826 GBP
View
7 more retailers have this diamond
Prices start from $423 USDSave up to $626 USD

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
$423 USD