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Radiant|Lab Grown|IGI

6.88ct G VVS2 Radiant Lab Grown Diamond

ID • G/VVS2 • IGI LG803641645

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

Certificate IGI LG803641645

Diamond specifications and retailer prices

From £707 GBP
$947 USD
As of October 31, 2026
Save £257 GBP (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £6,945 GBP at Helzberg Diamonds · As of October 7, 2026
View at Helzberg Diamonds

About this 6.88ct lab-grown radiant diamond

This 6.88ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG803641645 or 803641645. Listed at 4 retailers as of October 31, 2026, with a 36% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

6.88
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803641645
Dimensions12.84 × 9.47 × 6.40 mm
L/W Ratio1.36
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.84 mm9.47 mm6.88 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803641645
Side View
Table 67.0%Crown 47.1°Girdle: Slightly ThickPavilion 36.3°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
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: Oct 31
Current: £6,945 GBP|Low: £707 GBP|High: £6,945 GBP|Avg: £2,937 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2£707 GBP
Retailer 3£964 GBP
Retailer 4£1,099 GBP
Retailer 8£1,237 GBP
Retailer 9£2,413 GBP
Retailer 6£3,262 GBP
Retailer 7£4,302 GBP
Retailer 5£4,978 GBP
Helzberg Diamonds£6,945 GBP

19 data points across 9 retailers

4 retailers£707 GBP to £964 GBP

A
Cheapest Retailer
-
£707 GBP
$947 USD
Final sale: no returns
B+
Retailer 2
-
£964 GBP
$1,292 USD
View
Retailer 3
-
£4,978 GBP
$6,670 USD
View
Price last confirmed 23 days ago
Most Expensive
Helzberg Diamonds
ZXZOGJMKHMKL · Oct 7
£6,945 GBP
$9,305 USD
View
Price last confirmed 25 days ago
3 more retailers have this diamond
Prices start from £707 GBPSave up to £257 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
6.88ct Radiant
£707 GBP