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Radiant|Lab Grown|IGI

6.30ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG581318746

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

Certificate IGI LG581318746

Diamond specifications and retailer prices

From £821 GBP
$1,100 USD
As of November 2, 2026
Save £3,254 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,075 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.3ct lab-grown radiant diamond

This 6.3ct lab-grown radiant 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 LG581318746 or 581318746. Listed at 17 retailers as of October 31, 2026, with prices from £821 to £4,075, a £3,254 spread on the same certified stone. Brilliant Earth lists it at £4,075. 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581318746
Dimensions12.72 × 9.09 × 6.22 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
12.72 mm9.09 mm6.30 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581318746
Side View
Table 65.0%Crown 46°Girdle: MediumPavilion 35°Culet: NoneDepth 68.4%

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: £4,075 GBP|Low: £658 GBP|High: £4,075 GBP|Avg: £1,646 GBP
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 6£666 GBP
Retailer 9£683 GBP
Retailer 14£821 GBP
Retailer 2£1,060 GBP
Retailer 17£1,065 GBP
Retailer 5£1,116 GBP
Retailer 11£1,137 GBP
Retailer 12£1,281 GBP
Retailer 13£1,337 GBP
Retailer 15£1,643 GBP
Retailer 16£1,799 GBP
Retailer 7£2,184 GBP
Retailer 3£2,335 GBP
Retailer 4£2,390 GBP
Retailer 8£2,470 GBP
Retailer 10£2,590 GBP
Brilliant Earth£4,075 GBP

39 data points across 17 retailers

17 retailers£821 GBP to £4,075 GBP

Retailer 1
-
£640 GBP
$858 USD
Price last confirmed 35 days ago
Retailer 2
-
£673 GBP
$902 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
£821 GBP
$1,100 USD
View
A
Retailer 4
-
£1,060 GBP
View
A
Retailer 5
-
£1,065 GBP
$1,427 USD
View
B+
Retailer 6
-
£1,116 GBP
$1,495 USD
View
A
Retailer 7
-
£1,137 GBP
€1,451 EUR
View
A
Retailer 8
-
£1,281 GBP
A$2,640 AUD
View
A
Retailer 9
-
£1,337 GBP
ZAR 28,944 ZAR
View
A
Retailer 10
-
£1,643 GBP
$2,202 USD
View
B+
Retailer 11
-
£1,799 GBP
$2,410 USD
View
Retailer 12
-
£2,184 GBP
View
Price last confirmed 21 days ago
B+
Retailer 13
-
£2,335 GBP
$3,129 USD
View
B+
Retailer 14
-
£2,390 GBP
$3,202 USD
View
Retailer 15
-
£2,470 GBP
$3,310 USD
View
Price last confirmed 22 days ago
B+
Retailer 16
-
£2,590 GBP
View
Most Expensive
B
Brilliant Earth
7625224A · Oct 31
£4,075 GBP
$5,460 USD
View
16 more retailers have this diamond
Prices start from £821 GBPSave up to £3,254 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
£821 GBP