CaratHunter
Plans
Radiant|Lab Grown|IGI

0.51ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG794629146

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

Certificate IGI LG794629146

Diamond specifications and retailer prices

From £125 GBP
$167 USD
As of October 30, 2026
Save £687 GBP (85%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £811 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.51ct lab-grown radiant diamond

This 0.51ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG794629146 or 794629146. Listed at 23 retailers as of October 30, 2026, with prices from £125 to £811, a £687 spread on the same certified stone. Reve Diamonds lists it at £811. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794629146
Dimensions5.78 × 4.03 × 2.65 mm
L/W Ratio1.43
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.78 mm4.03 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794629146
Side View
Table 69.0%Crown 41.8°Girdle: MediumPavilion 35.5°Culet: NoneDepth 65.8%

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: £280 GBP|Low: £119 GBP|High: £808 GBP|Avg: £316 GBP|+1.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 2£125 GBP
Retailer 13£139 GBP
Retailer 8£144 GBP
Retailer 5£154 GBP
Retailer 9£154 GBP
Retailer 16£179 GBP
Retailer 3£209 GBP
Retailer 11£272 GBP
Retailer 1£280 GBP
Retailer 12£288 GBP
Retailer 4£291 GBP
Retailer 10£319 GBP
Retailer 15£393 GBP
Retailer 6£496 GBP
Retailer 7£505 GBP
Retailer 17£524 GBP
Retailer 14£725 GBP
Retailer 18£808 GBP

46 data points across 18 retailers

23 retailers£125 GBP to £811 GBP

A
Cheapest Retailer
-
£125 GBP
$167 USD
A
Retailer 2
-
£139 GBP
$186 USD
View
Final sale: no returns
A
Retailer 3
-
£144 GBP
$193 USD
View
Retailer 4
-
£154 GBP
$207 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£154 GBP
$207 USD
View
A
Retailer 6
-
£172 GBP
HK$1,800 HKD
View
Retailer 7
-
£179 GBP
$240 USD
View
Price last confirmed 11 days ago
A
Retailer 8
-
£209 GBP
$280 USD
View
B+
Retailer 9
-
£272 GBP
View
B+
Retailer 10
-
£280 GBP
ZAR 6,065 ZAR
View
B+
Retailer 11
-
£288 GBP
€368 EUR
View
B+
Retailer 12
-
£291 GBP
$390 USD
View
B
Retailer 13
-
£319 GBP
$428 USD
View
B
Retailer 14
-
£393 GBP
A$810 AUD
View
B
Retailer 15
-
£423 GBP
SGD 766 SGD
View
B
Retailer 16
-
£496 GBP
$664 USD
View
B
Retailer 17
-
£505 GBP
$677 USD
View
B
Retailer 18
-
£524 GBP
$702 USD
View
B
Retailer 19
-
£537 GBP
$719 USD
View
B
Retailer 20
-
£673 GBP
View
B
Retailer 21
-
£725 GBP
View
B
Retailer 22
-
£808 GBP
View
Most Expensive
B
Reve Diamonds
1AE5E15FB · Nov 1
£811 GBP
$1,087 USD
View
22 more retailers have this diamond
Prices start from £125 GBPSave up to £687 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
0.51ct Radiant
£125 GBP