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Round|Lab Grown|IGI

1.23ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG818644630

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818644630

Diamond specifications and retailer prices

From £137 GBP
$184 USD
As of November 1, 2026
Save £659 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £796 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818644630 or 818644630. Listed at 18 retailers as of November 1, 2026, with prices from £137 to £796, a £659 spread on the same certified stone. MOH London lists it at £796. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644630
Dimensions6.92 × 6.88 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.92 mm6.88 mm1.23 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644630
Side View
Table 58.0%Crown 33.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

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 1
Current: £796 GBP|Low: £132 GBP|High: £806 GBP|Avg: £349 GBP|-0.1%
MOH London
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
November 2, 2026
Retailer 10£137 GBP
Retailer 14£154 GBP
Retailer 3£159 GBP
Retailer 5£170 GBP
Retailer 13£170 GBP
Retailer 11£230 GBP
Retailer 2£307 GBP
Retailer 7£314 GBP
Retailer 8£381 GBP
Retailer 9£430 GBP
Retailer 4£547 GBP
Retailer 12£552 GBP
Retailer 6£558 GBP
MOH London£796 GBP

44 data points across 14 retailers

18 retailers£137 GBP to £796 GBP

A
Cheapest Retailer
-
£137 GBP
$184 USD
A
Retailer 2
-
£154 GBP
$206 USD
View
Final sale: no returns
A
Retailer 3
-
£159 GBP
$213 USD
View
A
Retailer 4
-
£170 GBP
$228 USD
View
Retailer 5
-
£170 GBP
$228 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£191 GBP
HK$2,000 HKD
View
B+
Retailer 7
-
£230 GBP
$308 USD
View
B+
Retailer 8
-
£302 GBP
$405 USD
View
B+
Retailer 9
-
£307 GBP
View
B+
Retailer 10
-
£314 GBP
€401 EUR
View
B+
Retailer 11
-
£381 GBP
$510 USD
View
B+
Retailer 12
-
£430 GBP
$576 USD
View
B
Retailer 13
-
£547 GBP
$733 USD
View
B
Retailer 14
-
£552 GBP
$740 USD
View
B
Retailer 15
-
£556 GBP
SGD 1,006 SGD
View
B
Retailer 16
-
£569 GBP
$762 USD
View
B
Retailer 17
-
£588 GBP
$788 USD
View
Most Expensive
B
MOH London
LG818644630 · Nov 1
£796 GBP
View
17 more retailers have this diamond
Prices start from £137 GBPSave up to £659 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
1.23ct Round
£137 GBP