CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct J VS2 Round Lab Grown Diamond

ID • J/VS2 • IGI LG436064896

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436064896

Diamond specifications and retailer prices

From £280 GBP
$375 USD
As of October 30, 2026
Save £456 GBP (62%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £736 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct 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 LG436064896 or 436064896. Listed at 5 retailers as of October 29, 2026, with prices from £280 to £736, a £456 spread on the same certified stone. MOH London lists it at £736. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
J
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436064896
Dimensions6.92 × 6.89 × 4.31 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.92 mm6.89 mm1.28 ctJ / VS2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436064896
Side View
Table 58.5%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: £736 GBP|Low: £210 GBP|High: £867 GBP|Avg: £480 GBP|-14.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 18, 2026
Retailer 2£280 GBP
Retailer 3£345 GBP
Retailer 4£432 GBP
Retailer 6£436 GBP
Retailer 5£544 GBP
MOH London£736 GBP

13 data points across 6 retailers

5 retailers£280 GBP to £736 GBP

B+
Cheapest Retailer
-
£280 GBP
$375 USD
A
Retailer 2
-
£345 GBP
$462 USD
View
A
Retailer 3
-
£432 GBP
$579 USD
View
Retailer 4
-
£544 GBP
$729 USD
View
Price last confirmed 12 days ago
Most Expensive
B+
MOH London
LG436064896 · Oct 29
£736 GBP
View
4 more retailers have this diamond
Prices start from £280 GBPSave up to £456 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
1.28ct Round
£280 GBP