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1.02ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG499108010

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499108010

Diamond specifications and retailer prices

From £492 GBP
$659 USD
As of October 29, 2026
Save £1,925 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,417 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.02ct lab-grown round diamond

This 1.02ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499108010 or 499108010. Listed at 11 retailers as of October 29, 2026, with prices from £492 to £2,417, a £1,925 spread on the same certified stone. MOH London lists it at £2,417. 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

1.02
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499108010
Dimensions6.51 × 6.46 × 3.96 mm
L/W Ratio1.01
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
6.51 mm6.46 mm1.02 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499108010
Side View
Table 61.0%Crown 33.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.1%

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 29
Current: £2,417 GBP|Low: £472 GBP|High: £2,433 GBP|Avg: £1,009 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
October 29, 2026
Retailer 4£492 GBP
Retailer 9£551 GBP
Retailer 5£567 GBP
Retailer 6£571 GBP
Retailer 8£571 GBP
Retailer 10£702 GBP
Retailer 11£914 GBP
Retailer 7£930 GBP
Retailer 2£1,458 GBP
Retailer 3£1,634 GBP
MOH London£2,417 GBP

16 data points across 11 retailers

11 retailers£492 GBP to £2,417 GBP

A
Cheapest Retailer
-
£492 GBP
$659 USD
A
Retailer 2
-
£535 GBP
$717 USD
View
A
Retailer 3
-
£551 GBP
$738 USD
View
Final sale: no returns
A
Retailer 4
-
£567 GBP
$760 USD
View
A
Retailer 5
-
£571 GBP
$765 USD
View
Retailer 6
-
£571 GBP
$765 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
£702 GBP
$940 USD
View
B+
Retailer 8
-
£930 GBP
$1,246 USD
View
B
Retailer 9
-
£1,458 GBP
$1,953 USD
View
B
Retailer 10
-
£1,605 GBP
$2,150 USD
View
Most Expensive
B
MOH London
LG499108010 · Oct 29
£2,417 GBP
View
10 more retailers have this diamond
Prices start from £492 GBPSave up to £1,925 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
1.02ct Round
£492 GBP