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Round|Lab Grown|IGI

1.25ct J VS2 Round Lab Grown Diamond

ID • J/VS2 • IGI LG492123266

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123266

Diamond specifications and retailer prices

From £530 GBP
$710 USD
As of October 30, 2026
Save £3,031 GBP (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,561 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492123266 or 492123266. Listed at 12 retailers as of October 29, 2026, with prices from £530 to £3,561, a £3,031 spread on the same certified stone. MOH London lists it at £3,561. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
J
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123266
Dimensions6.89 × 6.86 × 4.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.89 mm6.86 mm1.25 ctJ / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123266
Side View
Table 57.5%Crown 35.7°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

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 30
Current: £3,561 GBP|Low: £530 GBP|High: £3,589 GBP|Avg: £1,598 GBP|-0.5%
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
October 30, 2026
Retailer 2£530 GBP
Retailer 7£950 GBP
Retailer 11£1,064 GBP
Retailer 8£1,102 GBP
Retailer 10£1,102 GBP
Retailer 12£1,231 GBP
Retailer 4£1,270 GBP
Retailer 13£1,516 GBP
Retailer 9£1,746 GBP
Retailer 6£1,885 GBP
Retailer 3£2,055 GBP
Retailer 5£2,467 GBP
MOH London£3,561 GBP

16 data points across 13 retailers

12 retailers£530 GBP to £3,561 GBP

A
Cheapest Retailer
-
£530 GBP
$710 USD
B+
Retailer 2
-
£950 GBP
$1,273 USD
View
B+
Retailer 3
-
£1,034 GBP
$1,385 USD
View
B+
Retailer 4
-
£1,064 GBP
$1,426 USD
View
Final sale: no returns
B
Retailer 5
-
£1,102 GBP
$1,477 USD
View
Retailer 6
-
£1,102 GBP
$1,477 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
£1,231 GBP
$1,650 USD
View
B
Retailer 8
-
£1,746 GBP
$2,339 USD
View
B
Retailer 9
-
£1,885 GBP
€2,406 EUR
View
B
Retailer 10
-
£2,055 GBP
$2,753 USD
View
B
Retailer 11
-
£2,066 GBP
$2,768 USD
View
Most Expensive
B
MOH London
LG492123266 · Oct 29
£3,561 GBP
View
11 more retailers have this diamond
Prices start from £530 GBPSave up to £3,031 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
1.25ct Round
£530 GBP