Radiant|Lab Grown|IGI

0.99ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG639405669

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

Certificate IGI LG639405669

Diamond specifications and retailer prices

From £149 GBP
$200 USD
As of October 30, 2026
Save £741 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £891 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.99ct lab-grown radiant diamond

This 0.99ct lab-grown radiant sits in the just-under-one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG639405669 or 639405669. Listed at 19 retailers as of October 30, 2026, with prices from £149 to £891, a £741 spread on the same certified stone. Reve Diamonds lists it at £891. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639405669
Dimensions7.46 × 4.78 × 3.08 mm
L/W Ratio1.56
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm4.78 mm0.99 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639405669
Side View
Table 64.0%Crown 37.8°Girdle: MED-STKPavilion 32.4°Culet: NoneDepth 64.4%

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: £302 GBP|Low: £143 GBP|High: £876 GBP|Avg: £363 GBP|+2.4%
Retailer 1
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
October 31, 2026
Retailer 14£149 GBP
Retailer 6£166 GBP
Retailer 4£173 GBP
Retailer 2£185 GBP
Retailer 5£185 GBP
Retailer 1£302 GBP
Retailer 8£335 GBP
Retailer 7£336 GBP
Retailer 12£392 GBP
Retailer 9£454 GBP
Retailer 10£462 GBP
Retailer 13£475 GBP
Retailer 3£595 GBP
Retailer 11£866 GBP

44 data points across 14 retailers

19 retailers£149 GBP to £891 GBP

A
Cheapest Retailer
-
£149 GBP
$200 USD
A
Retailer 2
-
£166 GBP
$223 USD
View
Final sale: no returns
A
Retailer 3
-
£173 GBP
$232 USD
View
A
Retailer 4
-
£185 GBP
$248 USD
View
A
Retailer 5
-
£185 GBP
$248 USD
View
A
Retailer 6
-
£214 GBP
$287 USD
View
A
Retailer 7
-
£250 GBP
$335 USD
View
A
Retailer 8
-
£302 GBP
€386 EUR
View
B+
Retailer 9
-
£335 GBP
ZAR 7,241 ZAR
View
B+
Retailer 10
-
£336 GBP
View
B+
Retailer 11
-
£392 GBP
$525 USD
View
B+
Retailer 12
-
£454 GBP
A$935 AUD
View
B+
Retailer 13
-
£462 GBP
A$953 AUD
View
B
Retailer 14
-
£475 GBP
$636 USD
View
B
Retailer 15
-
£595 GBP
$797 USD
View
B
Retailer 16
-
£627 GBP
$840 USD
View
B
Retailer 17
-
£635 GBP
$850 USD
View
B
Retailer 18
-
£866 GBP
View
Most Expensive
B
Reve Diamonds
7BAD026E8 · Oct 30
£891 GBP
$1,193 USD
View
18 more retailers have this diamond
Prices start from £149 GBPSave up to £741 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
0.99ct Radiant
£149 GBP