Radiant|Lab Grown|IGI

3.11ct H VS1 Radiant Lab Grown Diamond

GD • H/VS1 • IGI LG594321825

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

Certificate IGI LG594321825

Diamond specifications and retailer prices

From £1,027 GBP
As of October 31, 2026
5 retailers carry this diamond
Most expensive: £1,485 GBP at Rare Carat · As of September 9, 2026
View at Rare Carat

About this 3.11ct lab-grown radiant diamond

This 3.11ct lab-grown radiant sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG594321825 or 594321825. Listed at 5 retailers as of October 31, 2026. 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

3.11
Carat
H
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594321825
Dimensions10.11 × 7.19 × 4.91 mm
L/W Ratio1.41
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
10.11 mm7.19 mm3.11 ctH / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594321825
Side View
Table 65.0%Crown 43.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 68.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: £1,485 GBP|Low: £216 GBP|High: £1,926 GBP|Avg: £818 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
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Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
September 27, 2026
Retailer 3£298 GBP
Retailer 11£309 GBP
Retailer 18£326 GBP
Retailer 15£330 GBP
Retailer 10£435 GBP
Retailer 6£510 GBP
Retailer 16£530 GBP
Retailer 17£535 GBP
Retailer 4£624 GBP
Retailer 2£695 GBP
Retailer 13£702 GBP
Retailer 5£737 GBP
Retailer 9£899 GBP
Retailer 7£1,092 GBP
Retailer 8£1,194 GBP
Retailer 12£1,303 GBP
Rare Carat£1,485 GBP
Retailer 14£1,888 GBP

8 data points across 18 retailers

5 retailers

Retailer 1
-
£309 GBP
$414 USD
Price last confirmed 34 days ago
Retailer 2
-
£326 GBP
$437 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£702 GBP
ZAR 15,187 ZAR
View
Price last confirmed 34 days ago
B+
Retailer 4
-
£1,027 GBP
View
Most Expensive
Rare Carat
420292 · Sep 9
£1,485 GBP
$1,990 USD
View
Price last confirmed 52 days ago
4 more retailers have this diamond
Prices start from £1,027 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.

B+
3.11ct Radiant
£1,027 GBP