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Radiant|Lab Grown|IGI

6.30ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG831655372

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

Certificate IGI LG831655372

Diamond specifications and retailer prices

From £1,596 GBP
$2,138 USD
As of October 30, 2026
Save £4,637 GBP (74%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £6,233 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.3ct lab-grown radiant diamond

This 6.3ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831655372 or 831655372. Listed at 11 retailers as of October 30, 2026, with prices from £1,596 to £6,233, a £4,637 spread on the same certified stone. With Clarity lists it at £6,233. 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

6.30
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831655372
Dimensions12.83 × 8.59 × 6.41 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.83 mm8.59 mm6.30 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831655372
Side View
Table 68.0%Crown 49.5°Girdle: ThickPavilion 40.9°Culet: NoneDepth 74.6%

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 30
Current: £3,960 GBP|Low: £1,533 GBP|High: £11,516 GBP|Avg: £4,057 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 31, 2026
Retailer 10£1,596 GBP
Retailer 5£1,813 GBP
Retailer 7£2,023 GBP
Retailer 3£2,271 GBP
Retailer 9£2,786 GBP
Retailer 6£3,686 GBP
Retailer 1£3,960 GBP
Retailer 2£4,515 GBP
Retailer 8£4,538 GBP
Retailer 4£5,918 GBP
With Clarity£6,108 GBP

38 data points across 11 retailers

11 retailers£1,596 GBP to £6,233 GBP

A
Cheapest Retailer
-
£1,596 GBP
$2,138 USD
A
Retailer 2
-
£1,813 GBP
View
Retailer 3
-
£2,023 GBP
$2,711 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£2,271 GBP
€2,898 EUR
View
B+
Retailer 5
-
£2,786 GBP
$3,733 USD
View
B
Retailer 6
-
£3,686 GBP
View
B
Retailer 7
-
£3,960 GBP
A$8,162 AUD
View
B
Retailer 8
-
£4,515 GBP
$6,050 USD
View
Retailer 9
-
£4,538 GBP
$6,080 USD
View
Price last confirmed 13 days ago
B
Retailer 10
-
£5,918 GBP
$7,930 USD
View
Most Expensive
B
With Clarity
831655372 · Oct 31
£6,233 GBP
$8,351 USD
View
10 more retailers have this diamond
Prices start from £1,596 GBPSave up to £4,637 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
6.30ct Radiant
£1,596 GBP