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Radiant|Lab Grown|IGI

6.50ct G VS1 Radiant Lab Grown Diamond

VG • G/VS1 • IGI LG818626143

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

Certificate IGI LG818626143

Diamond specifications and retailer prices

From £1,003 GBP
HK$10,500 HKD
As of October 31, 2026
Save £3,158 GBP (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £4,161 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.5ct lab-grown radiant diamond

This 6.5ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG818626143 or 818626143. Listed at 9 retailers as of October 31, 2026, with prices from £1,003 to £4,161, a £3,158 spread on the same certified stone. With Clarity lists it at £4,161. 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

6.50
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.7°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818626143
Dimensions12.74 × 9.13 × 6.48 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.74 mm9.13 mm6.50 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818626143
Side View
Table 62.0%Crown 43.7°Girdle: MED-STKPavilion 36.7°Culet: NoneDepth 71.0%

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 31
Current: £2,877 GBP|Low: £965 GBP|High: £4,161 GBP|Avg: £2,209 GBP|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
November 1, 2026
Retailer 5£1,003 GBP
Retailer 2£1,298 GBP
Retailer 3£1,353 GBP
Retailer 6£1,356 GBP
Retailer 8£1,947 GBP
Retailer 1£2,877 GBP
Retailer 7£2,955 GBP
Retailer 4£3,332 GBP
With Clarity£4,161 GBP

41 data points across 9 retailers

9 retailers£1,003 GBP to £4,161 GBP

A
Cheapest Retailer
-
£1,003 GBP
HK$10,500 HKD
A
Retailer 2
-
£1,298 GBP
View
B+
Retailer 3
-
£1,353 GBP
€1,727 EUR
View
B+
Retailer 4
-
£1,356 GBP
$1,817 USD
View
B+
Retailer 5
-
£1,947 GBP
$2,609 USD
View
B
Retailer 6
-
£2,877 GBP
View
B
Retailer 7
-
£2,955 GBP
$3,960 USD
View
B
Retailer 8
-
£3,332 GBP
$4,465 USD
View
Most Expensive
B
With Clarity
818626143 · Oct 31
£4,161 GBP
$5,575 USD
View
8 more retailers have this diamond
Prices start from £1,003 GBPSave up to £3,158 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
6.50ct Radiant
£1,003 GBP