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Round|Lab Grown|IGI

1.21ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG720547648

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720547648

Diamond specifications and retailer prices

From $181 USD
As of November 1, 2026
Save $872 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,053 USD at MOH London · As of November 1, 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG720547648 or 720547648. Listed at 19 retailers as of November 1, 2026, with prices from $181 to $1,053, a $872 spread on the same certified stone. MOH London lists it at $1,053. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720547648
Dimensions6.88 × 6.86 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.88 mm6.86 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720547648
Side View
Table 57.0%Crown 34.3°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

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 1
Current: $1,053 USD|Low: $172 USD|High: $1,063 USD|Avg: $499 USD|+1.0%
MOH London
Retailer 2
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 19
November 1, 2026
Retailer 6$181 USD
Retailer 18$211 USD
Retailer 4$225 USD
Retailer 11$225 USD
Retailer 13$382 USD
Retailer 2$388 USD
Retailer 19$393 USD
Retailer 10$397 USD
Retailer 12$405 USD
Retailer 14$499 USD
Retailer 3$505 USD
Retailer 9$547 USD
Retailer 16$549 USD
Retailer 5$567 USD
Retailer 15$651 USD
Retailer 17$670 USD
Retailer 7$723 USD
Retailer 8$778 USD
MOH London$1,053 USD

44 data points across 19 retailers

19 retailers$181 USD to $1,053 USD

A
Cheapest Retailer
-
$181 USD
A
Retailer 2
-
$211 USD
View
Retailer 3
-
$225 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$225 USD
View
A
Retailer 5
-
$382 USD
€364 EUR
View
A
Retailer 6
-
$388 USD
ZAR 6,276 ZAR
View
A
Retailer 7
-
$393 USD
View
A
Retailer 8
-
$397 USD
View
B+
Retailer 9
-
$405 USD
£319 GBP
View
B+
Retailer 10
-
$499 USD
A$768 AUD
View
Retailer 11
-
$505 USD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$547 USD
View
B+
Retailer 13
-
$549 USD
A$845 AUD
View
B+
Retailer 14
-
$567 USD
View
B+
Retailer 15
-
$651 USD
A$1,001 AUD
View
B
Retailer 16
-
$670 USD
View
B
Retailer 17
-
$723 USD
View
B
Retailer 18
-
$778 USD
View
Most Expensive
B
MOH London
LG720547648 · Nov 1
$1,053 USD
£829 GBP
View
18 more retailers have this diamond
Prices start from $181 USDSave up to $872 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
$181 USD