Heart|Lab Grown|IGI

0.51ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG818657671

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818657671

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of October 25, 2026
Save £388 GBP (67%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £847 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818657671 or 818657671. Listed at 17 retailers as of October 25, 2026, with a 201% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818657671
Dimensions5.02 × 5.54 × 3.11 mm
L/W Ratio1.10
Girdle conditionFaceted
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
5.02 mm5.54 mm0.51 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818657671
Side View
Table 60.0%Crown 39.4°Girdle: MED-STKPavilion 36.2°Culet: NoneDepth 56.1%

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 25
Current: £294 GBP|Low: £107 GBP|High: £847 GBP|Avg: £410 GBP|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 26, 2026
Retailer 2£152 GBP
Retailer 9£193 GBP
Retailer 10£237 GBP
Retailer 5£288 GBP
Retailer 1£294 GBP
Retailer 6£299 GBP
Retailer 11£352 GBP
Retailer 4£430 GBP
Retailer 7£571 GBP
Retailer 3£581 GBP
Retailer 8£796 GBP
Reve Diamonds£847 GBP

28 data points across 12 retailers

17 retailers£193 GBP to £581 GBP

Retailer 1
-
£136 GBP
$182 USD
Price last confirmed 23 days ago
Retailer 2
-
£157 GBP
$211 USD
View
Price last confirmed 33 days ago
Retailer 3
-
£166 GBP
$222 USD
View
Price last confirmed 36 days ago
Retailer 4
-
£168 GBP
$225 USD
View
Price last confirmed 20 days ago
Retailer 5
-
£168 GBP
$225 USD
View
Price last confirmed 28 days ago
A
Retailer 6
-
£193 GBP
$259 USD
View
B+
Retailer 7
-
£237 GBP
$318 USD
View
Retailer 8
-
£288 GBP
€367 EUR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£294 GBP
View
Retailer 10
-
£299 GBP
ZAR 6,479 ZAR
View
Price last confirmed 9 days ago
Retailer 11
-
£352 GBP
$472 USD
View
Price last confirmed 8 days ago
Retailer 12
-
£430 GBP
A$886 AUD
View
Price last confirmed 8 days ago
Retailer 13
-
£541 GBP
$725 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
£571 GBP
$765 USD
View
B
Retailer 15
-
£581 GBP
$779 USD
View
Retailer 16
-
£796 GBP
View
Price last confirmed 21 days ago
Most Expensive
Reve Diamonds
2D1958733 · Oct 25
£847 GBP
$1,135 USD
View
Price last confirmed 7 days ago
16 more retailers have this diamond
Prices start from £193 GBPSave up to £388 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 Heart
£193 GBP