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Radiant|Lab Grown|IGI

10.55ct H VS1 Radiant Lab Grown Diamond

VG • H/VS1 • IGI LG586365187

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG586365187

Diamond specifications and retailer prices

From £1,284 GBP
$1,720 USD
As of November 2, 2026
Save £4,881 GBP (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,165 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.55ct lab-grown radiant diamond

This 10.55ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG586365187 or 586365187. Listed at 13 retailers as of October 31, 2026, with prices from £1,284 to £6,165, a £4,881 spread on the same certified stone. Brilliant Earth lists it at £6,165. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

10.55
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG586365187
Dimensions15.22 × 10.84 × 7.43 mm
L/W Ratio1.40
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
15.22 mm10.84 mm10.55 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG586365187
Side View
Table 66.0%Crown 43.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 68.5%

Caratlytics Score

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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: Nov 2
Current: £6,165 GBP|Low: £749 GBP|High: £6,165 GBP|Avg: £2,559 GBP|+3.9%
Brilliant Earth
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
October 31, 2026
Retailer 4£1,114 GBP
Retailer 8£1,284 GBP
Retailer 6£1,324 GBP
Retailer 12£1,603 GBP
Retailer 9£1,787 GBP
Retailer 3£1,826 GBP
Retailer 7£1,904 GBP
Retailer 2£2,139 GBP
Retailer 10£2,152 GBP
Retailer 13£2,787 GBP
Retailer 5£3,869 GBP
Retailer 11£3,893 GBP
Retailer 14£4,057 GBP
Brilliant Earth£6,165 GBP

31 data points across 14 retailers

13 retailers£1,284 GBP to £6,165 GBP

A
Cheapest Retailer
-
£1,284 GBP
$1,720 USD
Retailer 2
-
£1,324 GBP
$1,774 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
£1,603 GBP
$2,148 USD
View
B+
Retailer 4
-
£1,787 GBP
ZAR 38,690 ZAR
View
B+
Retailer 5
-
£1,826 GBP
$2,446 USD
View
B+
Retailer 6
-
£1,904 GBP
€2,430 EUR
View
B+
Retailer 7
-
£2,139 GBP
A$4,410 AUD
View
B+
Retailer 8
-
£2,152 GBP
$2,884 USD
View
B+
Retailer 9
-
£2,787 GBP
View
Retailer 10
-
£3,869 GBP
$5,183 USD
View
Price last confirmed 22 days ago
B
Retailer 11
-
£3,893 GBP
$5,216 USD
View
B
Retailer 12
-
£4,057 GBP
$5,435 USD
View
Most Expensive
B
Brilliant Earth
7631613A · Oct 31
£6,165 GBP
$8,260 USD
View
12 more retailers have this diamond
Prices start from £1,284 GBPSave up to £4,881 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
10.55ct Radiant
£1,284 GBP