Oval|Lab Grown|IGI

1.21ct F VS1 Oval Lab Grown Diamond

EX • F/VS1 • IGI LG819608545

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG819608545

Diamond specifications and retailer prices

From $328 USD
As of November 4, 2026
Save $809 USD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,137 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct lab-grown oval diamond

This 1.21ct lab-grown oval 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 LG819608545 or 819608545. Listed at 11 retailers as of November 2, 2026, with prices from $328 to $1,137, a $809 spread on the same certified stone. MOH London lists it at $1,137. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819608545
Dimensions8.90 × 5.74 × 3.66 mm
L/W Ratio1.55
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.90 mm5.74 mm1.21 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819608545
Side View
Table 62.0%Crown 34°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 63.8%

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 4
Current: $1,137 USD|Low: $300 USD|High: $1,138 USD|Avg: $628 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5$328 USD
Retailer 6$332 USD
Retailer 2$439 USD
Retailer 8$439 USD
Retailer 3$586 USD
Retailer 4$672 USD
Retailer 9$822 USD
Retailer 10$835 USD
Retailer 7$848 USD
MOH London$1,137 USD

16 data points across 10 retailers

11 retailers$328 USD to $1,137 USD

B+
Cheapest Retailer
-
$328 USD
A
Retailer 2
-
$332 USD
View
A
Retailer 3
-
$439 USD
View
A
Retailer 4
-
$439 USD
View
B+
Retailer 5
-
$586 USD
View
Retailer 6
-
$672 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$730 USD
View
B
Retailer 8
-
$822 USD
View
B
Retailer 9
-
$835 USD
View
B
Retailer 10
-
$848 USD
View
Most Expensive
B
MOH London
LG819608545 · Nov 2
$1,137 USD
£895 GBP
View
10 more retailers have this diamond
Prices start from $328 USDSave up to $809 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 Oval
$328 USD