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10.56ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG658495636

Shape and cutting style on the report: Round brilliant

Certificate IGI LG658495636

Diamond specifications and retailer prices

From £3,045 GBP
$4,080 USD
As of October 31, 2026
Save £12,038 GBP (80%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £15,083 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.56ct lab-grown round diamond

This 10.56ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG658495636 or 658495636. Listed at 4 retailers as of October 31, 2026, with prices from £3,045 to £15,083, a £12,038 spread on the same certified stone. Brilliant Earth lists it at £15,083. 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

10.56
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658495636
Dimensions14.36 × 14.32 × 8.47 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
14.36 mm14.32 mm10.56 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658495636
Side View
Table 58.0%Crown 32.5°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £15,083 GBP|Low: £1,601 GBP|High: £15,546 GBP|Avg: £5,381 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 6£1,601 GBP
Retailer 3£3,024 GBP
Retailer 4£3,045 GBP
Retailer 7£3,098 GBP
Retailer 9£3,417 GBP
Retailer 2£3,539 GBP
Retailer 8£5,123 GBP
Retailer 5£5,671 GBP
Retailer 11£7,450 GBP
Retailer 10£7,793 GBP
Brilliant Earth£15,083 GBP

21 data points across 11 retailers

4 retailers£3,045 GBP to £15,083 GBP

A
Cheapest Retailer
-
£3,045 GBP
$4,080 USD
A
Retailer 2
-
£3,539 GBP
€4,516 EUR
View
B+
Retailer 3
-
£5,671 GBP
$7,598 USD
View
Most Expensive
B
Brilliant Earth
20601830A · Oct 31
£15,083 GBP
$20,210 USD
View
3 more retailers have this diamond
Prices start from £3,045 GBPSave up to £12,038 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
10.56ct Round
£3,045 GBP