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Round|Lab Grown|IGI

10.03ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG812603085

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812603085

Diamond specifications and retailer prices

From £1,320 GBP
$1,769 USD
As of October 29, 2026
Save £4,049 GBP (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,369 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 10.03ct lab-grown round diamond

This 10.03ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812603085 or 812603085. Listed at 15 retailers as of October 29, 2026, with prices from £1,320 to £5,369, a £4,049 spread on the same certified stone. Taylor and Hart lists it at £5,369. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

10.03
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812603085
Dimensions13.89 × 13.84 × 8.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.89 mm13.84 mm10.03 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812603085
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.3%

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: £1,657 GBP|Low: £1,055 GBP|High: £5,369 GBP|Avg: £2,406 GBP|-34.1%
Retailer 1
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
Taylor and Hart
October 31, 2026
Retailer 11£1,320 GBP
Retailer 7£1,371 GBP
Retailer 12£1,437 GBP
Retailer 5£1,478 GBP
Retailer 2£1,531 GBP
Retailer 13£1,531 GBP
Retailer 1£1,657 GBP
Retailer 4£1,935 GBP
Retailer 8£2,371 GBP
Retailer 14£2,402 GBP
Retailer 10£2,576 GBP
Retailer 9£2,842 GBP
Retailer 3£2,870 GBP
Retailer 6£4,505 GBP
Taylor and Hart£5,369 GBP

41 data points across 15 retailers

15 retailers£1,320 GBP to £5,369 GBP

A
Cheapest Retailer
-
£1,320 GBP
$1,769 USD
A
Retailer 2
-
£1,371 GBP
View
A
Retailer 3
-
£1,437 GBP
$1,925 USD
View
A
Retailer 4
-
£1,478 GBP
$1,981 USD
View
Final sale: no returns
Retailer 5
-
£1,531 GBP
$2,052 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
£1,531 GBP
$2,052 USD
View
A
Retailer 7
-
£1,657 GBP
$2,220 USD
View
A
Retailer 8
-
£1,935 GBP
$2,593 USD
View
A
Retailer 9
-
£2,371 GBP
ZAR 51,316 ZAR
View
A
Retailer 10
-
£2,402 GBP
$3,219 USD
View
A
Retailer 11
-
£2,576 GBP
$3,451 USD
View
Retailer 12
-
£2,842 GBP
A$5,859 AUD
View
Price last confirmed 9 days ago
A
Retailer 13
-
£2,870 GBP
$3,846 USD
View
B+
Retailer 14
-
£4,505 GBP
$6,036 USD
View
Most Expensive
B
Taylor and Hart
A3KOMY7 · Oct 30
£5,369 GBP
$7,194 USD
View
14 more retailers have this diamond
Prices start from £1,320 GBPSave up to £4,049 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
10.03ct Round
£1,320 GBP