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Heart|Lab Grown|IGI

0.99ct D VVS2 Heart Lab Grown Diamond

EX • D/VVS2 • IGI LG620499311

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG620499311

Diamond specifications and retailer prices

From £139 GBP
$185 USD
As of October 27, 2026
Save £1,025 GBP (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,163 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 0.99ct lab-grown heart diamond

This 0.99ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG620499311 or 620499311. Listed at 21 retailers as of October 27, 2026, with prices from £139 to £1,163, a £1,025 spread on the same certified stone. Queensmith lists it at £1,163. 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
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.7°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620499311
Dimensions6.29 × 7.09 × 3.84 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
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
6.29 mm7.09 mm0.99 ctD / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620499311
Side View
Table 53.0%Crown 29.7°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 54.2%

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 27
Current: £155 GBP|Low: £155 GBP|High: £815 GBP|Avg: £370 GBP|-17.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 1£155 GBP
Retailer 7£233 GBP
Retailer 3£311 GBP
Retailer 2£312 GBP
Retailer 8£351 GBP
Retailer 4£430 GBP
Retailer 6£439 GBP
Retailer 5£807 GBP

42 data points across 8 retailers

21 retailers£139 GBP to £1,163 GBP

A
Cheapest Retailer
-
£139 GBP
$185 USD
A
Retailer 2
-
£155 GBP
$207 USD
View
Final sale: no returns
A
Retailer 3
-
£161 GBP
$215 USD
View
A
Retailer 4
-
£172 GBP
$229 USD
View
A
Retailer 5
-
£172 GBP
$229 USD
View
A
Retailer 6
-
£192 GBP
HK$2,000 HKD
View
A
Retailer 7
-
£233 GBP
$310 USD
View
A
Retailer 8
-
£284 GBP
$378 USD
View
A
Retailer 9
-
£311 GBP
ZAR 6,697 ZAR
View
A
Retailer 10
-
£312 GBP
View
B+
Retailer 11
-
£351 GBP
$467 USD
View
B+
Retailer 12
-
£430 GBP
A$880 AUD
View
B+
Retailer 13
-
£439 GBP
$584 USD
View
B+
Retailer 14
-
£469 GBP
SGD 844 SGD
View
B+
Retailer 15
-
£498 GBP
View
B
Retailer 16
-
£553 GBP
$737 USD
View
B
Retailer 17
-
£576 GBP
$767 USD
View
B
Retailer 18
-
£594 GBP
$791 USD
View
B
Retailer 19
-
£807 GBP
View
B
Retailer 20
-
£860 GBP
$1,146 USD
View
Most Expensive
B
Queensmith
LG620499311 · Oct 27
£1,163 GBP
View
20 more retailers have this diamond
Prices start from £139 GBPSave up to £1,025 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 Heart
£139 GBP