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Round|Lab Grown|IGI

1.23ct F VS2 Round Lab Grown Diamond

EX • F/VS2 • IGI LG770639322

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770639322

Diamond specifications and retailer prices

From £131 GBP
$175 USD
As of November 1, 2026
Save £626 GBP (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £756 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 LG770639322 or 770639322. Listed at 18 retailers as of November 1, 2026, with prices from £131 to £756, a £626 spread on the same certified stone. MOH London lists it at £756. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770639322
Dimensions6.81 × 6.86 × 4.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.81 mm6.86 mm1.23 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770639322
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.6%

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: £756 GBP|Low: £125 GBP|High: £765 GBP|Avg: £366 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8£131 GBP
Retailer 10£162 GBP
Retailer 11£288 GBP
Retailer 5£289 GBP
Retailer 2£297 GBP
Retailer 4£301 GBP
Retailer 6£384 GBP
Retailer 7£406 GBP
Retailer 9£448 GBP
Retailer 3£580 GBP
MOH London£756 GBP

40 data points across 11 retailers

18 retailers£131 GBP to £756 GBP

A
Cheapest Retailer
-
£131 GBP
$175 USD
A
Retailer 2
-
£152 GBP
$203 USD
View
A
Retailer 3
-
£162 GBP
$217 USD
View
Retailer 4
-
£162 GBP
$217 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£288 GBP
$386 USD
View
A
Retailer 6
-
£289 GBP
View
A
Retailer 7
-
£297 GBP
View
B+
Retailer 8
-
£299 GBP
$401 USD
View
A
Retailer 9
-
£301 GBP
€384 EUR
View
B+
Retailer 10
-
£348 GBP
$466 USD
View
B+
Retailer 11
-
£384 GBP
$515 USD
View
B+
Retailer 12
-
£406 GBP
$544 USD
View
B+
Retailer 13
-
£448 GBP
$600 USD
View
Retailer 14
-
£497 GBP
$666 USD
View
Price last confirmed 47 days ago
B
Retailer 15
-
£520 GBP
$697 USD
View
B
Retailer 16
-
£560 GBP
$751 USD
View
B
Retailer 17
-
£580 GBP
$777 USD
View
Most Expensive
B
MOH London
LG770639322 · Nov 1
£756 GBP
View
17 more retailers have this diamond
Prices start from £131 GBPSave up to £626 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
£131 GBP