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10.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG583316193

Shape and cutting style on the report: Round brilliant

Certificate IGI LG583316193

Diamond specifications and retailer prices

From £1,060 GBP
$1,412 USD
As of October 29, 2026
Save £5,150 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £6,210 GBP at Adiamor · As of October 30, 2026
View at Adiamor

About this 10.51ct lab-grown round diamond

This 10.51ct lab-grown round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG583316193 or 583316193. Listed at 10 retailers as of October 29, 2026, with prices from £1,060 to £6,210, a £5,150 spread on the same certified stone. Adiamor lists it at £6,210. 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

10.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG583316193
Dimensions14.17 × 14.21 × 8.57 mm
L/W Ratio1.00
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
14.17 mm14.21 mm10.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG583316193
Side View
Table 58.0%Crown 34.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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: Oct 29
Current: £6,210 GBP|Low: £1,060 GBP|High: £16,601 GBP|Avg: £4,596 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6£1,060 GBP
Retailer 2£1,101 GBP
Retailer 10£1,229 GBP
Retailer 7£1,359 GBP
Retailer 11£1,451 GBP
Retailer 9£1,627 GBP
Retailer 5£1,728 GBP
Retailer 8£1,979 GBP
Retailer 12£2,305 GBP
Adiamor£6,210 GBP
Retailer 4£13,021 GBP
Retailer 3£16,601 GBP

3 data points across 12 retailers

10 retailers£1,060 GBP to £6,210 GBP

A
Cheapest Retailer
-
£1,060 GBP
$1,412 USD
A
Retailer 2
-
£1,101 GBP
View
A
Retailer 3
-
£1,229 GBP
$1,637 USD
View
A
Retailer 4
-
£1,359 GBP
$1,810 USD
View
A
Retailer 5
-
£1,451 GBP
HK$15,100 HKD
View
A
Retailer 6
-
£1,627 GBP
$2,167 USD
View
A
Retailer 7
-
£1,728 GBP
View
A
Retailer 8
-
£1,979 GBP
€2,510 EUR
View
A
Retailer 9
-
£2,305 GBP
$3,069 USD
View
Most Expensive
B
Adiamor
D-82833906 · Oct 30
£6,210 GBP
$8,270 USD
View
9 more retailers have this diamond
Prices start from £1,060 GBPSave up to £5,150 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
10.51ct Round
£1,060 GBP