CaratHunter
Plans
Oval|Lab Grown|IGI

1.21ct G VS1 Oval Lab Grown Diamond

ID • G/VS1 • IGI LG843609112

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843609112

Diamond specifications and retailer prices

From £118 GBP
$158 USD
As of October 29, 2026
Save £565 GBP (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £683 GBP at MOH London · As of October 26, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843609112 or 843609112. Listed at 11 retailers as of October 26, 2026, with prices from £118 to £683, a £565 spread on the same certified stone. MOH London lists it at £683. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843609112
Dimensions8.46 × 6.09 × 3.77 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.46 mm6.09 mm1.21 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843609112
Side View
Table 61.0%Crown 34.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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: Oct 29
Current: £683 GBP|Low: £118 GBP|High: £686 GBP|Avg: £376 GBP|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 5£118 GBP
Retailer 8£137 GBP
Retailer 4£179 GBP
Retailer 2£255 GBP
Retailer 6£356 GBP
Retailer 11£389 GBP
Retailer 7£469 GBP
Retailer 10£493 GBP
Retailer 9£496 GBP
Retailer 3£620 GBP
MOH London£683 GBP

22 data points across 11 retailers

11 retailers£118 GBP to £683 GBP

A
Cheapest Retailer
-
£118 GBP
$158 USD
A
Retailer 2
-
£137 GBP
$183 USD
View
A
Retailer 3
-
£179 GBP
View
A
Retailer 4
-
£255 GBP
€325 EUR
View
A
Retailer 5
-
£356 GBP
A$733 AUD
View
A
Retailer 6
-
£389 GBP
$521 USD
View
B+
Retailer 7
-
£469 GBP
$629 USD
View
B+
Retailer 8
-
£493 GBP
$660 USD
View
B+
Retailer 9
-
£496 GBP
$664 USD
View
Retailer 10
-
£620 GBP
SGD 1,123 SGD
View
Price last confirmed 21 days ago
Most Expensive
B
MOH London
LG843609112 · Oct 26
£683 GBP
View
10 more retailers have this diamond
Prices start from £118 GBPSave up to £565 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
£118 GBP