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Round|Lab Grown|IGI

2.53ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG770653209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770653209

Diamond specifications and retailer prices

From £278 GBP
As of November 4, 2026
Save £954 GBP (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,232 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 2.53ct lab-grown round diamond

This 2.53ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770653209 or 770653209. Listed at 15 retailers as of November 3, 2026, with prices from £278 to £1,232, a £954 spread on the same certified stone. MOH London lists it at £1,232. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.53
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770653209
Dimensions8.71 × 8.67 × 5.44 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.71 mm8.67 mm2.53 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770653209
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.6%

Caratlytics Score

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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 4
Current: £1,232 GBP|Low: £278 GBP|High: £2,132 GBP|Avg: £819 GBP|-1.1%
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 4, 2026
Retailer 14£278 GBP
Retailer 3£308 GBP
Retailer 7£420 GBP
Retailer 11£496 GBP
Retailer 8£542 GBP
Retailer 13£584 GBP
Retailer 4£629 GBP
Retailer 2£847 GBP
Retailer 10£902 GBP
Retailer 12£981 GBP
Retailer 9£1,055 GBP
Retailer 6£1,064 GBP
Retailer 5£1,200 GBP
MOH London£1,232 GBP

19 data points across 14 retailers

15 retailers£278 GBP to £1,232 GBP

Retailer 1
-
£238 GBP
Price last confirmed 36 days ago
A
Retailer 2
-
£278 GBP
View
Final sale: no returns
Retailer 3
-
£288 GBP
View
Price last confirmed 31 days ago
Retailer 4
-
£308 GBP
View
Price last confirmed 35 days ago
A
Retailer 5
-
£420 GBP
View
B+
Retailer 6
-
£496 GBP
View
A
Retailer 7
-
£542 GBP
View
A
Retailer 8
-
£584 GBP
View
A
Retailer 9
-
£629 GBP
View
A
Retailer 10
-
£847 GBP
View
B+
Retailer 11
-
£902 GBP
View
B+
Retailer 12
-
£981 GBP
View
Retailer 13
-
£989 GBP
View
Price last confirmed 30 days ago
A
Retailer 14
-
£1,055 GBP
View
Most Expensive
A
MOH London
LG770653209 · Nov 3
£1,232 GBP
View
14 more retailers have this diamond
Prices start from £278 GBPSave up to £954 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
2.53ct Round
£278 GBP