CaratHunter
Plans
Round|Lab Grown|IGI

1.02ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG499191799

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499191799

Diamond specifications and retailer prices

From £495 GBP
$659 USD
As of October 29, 2026
Save £1,937 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,432 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 LG499191799 or 499191799. Listed at 11 retailers as of October 29, 2026, with prices from £495 to £2,432, a £1,937 spread on the same certified stone. MOH London lists it at £2,432. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499191799
Dimensions6.39 × 6.44 × 3.97 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
6.39 mm6.44 mm1.02 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499191799
Side View
Table 56.5%Crown 35.8°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 61.9%

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: £2,432 GBP|Low: £395 GBP|High: £2,448 GBP|Avg: £938 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 3£495 GBP
Retailer 8£554 GBP
Retailer 4£571 GBP
Retailer 5£574 GBP
Retailer 7£574 GBP
Retailer 9£706 GBP
Retailer 10£920 GBP
Retailer 6£936 GBP
Retailer 2£1,467 GBP
MOH London£2,432 GBP

16 data points across 10 retailers

11 retailers£495 GBP to £2,432 GBP

A
Cheapest Retailer
-
£495 GBP
$659 USD
A
Retailer 2
-
£538 GBP
$717 USD
View
A
Retailer 3
-
£554 GBP
$738 USD
View
Final sale: no returns
A
Retailer 4
-
£571 GBP
$760 USD
View
A
Retailer 5
-
£574 GBP
$765 USD
View
Retailer 6
-
£574 GBP
$765 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
£706 GBP
$940 USD
View
B+
Retailer 8
-
£936 GBP
$1,246 USD
View
B
Retailer 9
-
£1,467 GBP
$1,953 USD
View
B
Retailer 10
-
£1,614 GBP
$2,150 USD
View
Most Expensive
B
MOH London
LG499191799 · Oct 29
£2,432 GBP
View
10 more retailers have this diamond
Prices start from £495 GBPSave up to £1,937 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
£495 GBP