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Oval|Lab Grown|IGI

1.21ct F VS1 Oval Lab Grown Diamond

ID • F/VS1 • IGI LG801621756

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG801621756

Diamond specifications and retailer prices

From £166 GBP
As of November 1, 2026
Save £1,427 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,593 GBP at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

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 LG801621756 or 801621756. Listed at 20 retailers as of November 1, 2026, with prices from £166 to £1,593, a £1,427 spread on the same certified stone. Do Amore Diamonds lists it at £1,593. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801621756
Dimensions8.62 × 5.89 × 3.75 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.62 mm5.89 mm1.21 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801621756
Side View
Table 61.0%Crown 33.5°Girdle: STK-THKPavilion 41.6°Culet: NoneDepth 63.7%

Caratlytics Score

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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 1
Current: £1,593 GBP|Low: £159 GBP|High: £1,593 GBP|Avg: £494 GBP
Do Amore Diamonds
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
November 4, 2026
Retailer 15£166 GBP
Retailer 5£193 GBP
Retailer 3£206 GBP
Retailer 7£206 GBP
Retailer 8£271 GBP
Retailer 6£384 GBP
Retailer 11£392 GBP
Retailer 2£427 GBP
Retailer 12£530 GBP
Retailer 9£556 GBP
Retailer 14£664 GBP
Retailer 4£730 GBP
Retailer 13£880 GBP
Retailer 10£910 GBP
Do Amore Diamonds£1,593 GBP

43 data points across 15 retailers

20 retailers£166 GBP to £1,593 GBP

A
Cheapest Retailer
-
£166 GBP
A
Retailer 2
-
£193 GBP
View
Retailer 3
-
£206 GBP
View
Price last confirmed 11 days ago
A
Retailer 4
-
£206 GBP
View
A
Retailer 5
-
£257 GBP
View
A
Retailer 6
-
£271 GBP
View
A
Retailer 7
-
£276 GBP
View
A
Retailer 8
-
£384 GBP
View
A
Retailer 9
-
£392 GBP
View
B+
Retailer 10
-
£427 GBP
View
B+
Retailer 11
-
£473 GBP
View
Retailer 12
-
£530 GBP
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£556 GBP
View
B
Retailer 14
-
£664 GBP
View
B
Retailer 15
-
£730 GBP
View
B
Retailer 16
-
£856 GBP
View
B
Retailer 17
-
£875 GBP
View
B
Retailer 18
-
£880 GBP
View
B
Retailer 19
-
£910 GBP
View
Most Expensive
B
Do Amore Diamonds
27-4582A2043 · Nov 3
£1,593 GBP
$2,150 USD
View
19 more retailers have this diamond
Prices start from £166 GBPSave up to £1,427 GBP

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
£166 GBP