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Heart|Lab Grown|IGI

0.99ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG665409636

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665409636

Diamond specifications and retailer prices

From £140 GBP
$187 USD
As of October 30, 2026
Save £719 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £859 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665409636 or 665409636. Listed at 21 retailers as of October 30, 2026, with prices from £140 to £859, a £719 spread on the same certified stone. Reve Diamonds lists it at £859. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409636
Dimensions6.26 × 6.79 × 4.09 mm
L/W Ratio1.08
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
6.26 mm6.79 mm0.99 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665409636
Side View
Table 55.0%Crown 32.7°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 60.2%

Caratlytics Score

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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 30
Current: £302 GBP|Low: £133 GBP|High: £859 GBP|Avg: £374 GBP|+1.3%
Retailer 1
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Retailer 18
Reve Diamonds
October 31, 2026
Retailer 18£140 GBP
Retailer 8£156 GBP
Retailer 10£161 GBP
Retailer 5£172 GBP
Retailer 7£172 GBP
Retailer 17£264 GBP
Retailer 1£302 GBP
Retailer 6£303 GBP
Retailer 14£312 GBP
Retailer 11£313 GBP
Retailer 3£350 GBP
Retailer 15£430 GBP
Retailer 12£445 GBP
Retailer 16£459 GBP
Retailer 4£459 GBP
Retailer 2£555 GBP
Retailer 9£595 GBP
Retailer 13£811 GBP
Reve Diamonds£859 GBP

40 data points across 19 retailers

21 retailers£140 GBP to £859 GBP

A
Cheapest Retailer
-
£140 GBP
$187 USD
A
Retailer 2
-
£156 GBP
$209 USD
View
Final sale: no returns
A
Retailer 3
-
£161 GBP
$216 USD
View
A
Retailer 4
-
£172 GBP
$231 USD
View
A
Retailer 5
-
£172 GBP
$231 USD
View
A
Retailer 6
-
£264 GBP
$354 USD
View
B+
Retailer 7
-
£302 GBP
€386 EUR
View
B+
Retailer 8
-
£303 GBP
$406 USD
View
B+
Retailer 9
-
£312 GBP
ZAR 6,754 ZAR
View
B+
Retailer 10
-
£313 GBP
View
B+
Retailer 11
-
£350 GBP
$469 USD
View
B+
Retailer 12
-
£430 GBP
A$887 AUD
View
B+
Retailer 13
-
£445 GBP
A$918 AUD
View
B+
Retailer 14
-
£459 GBP
A$946 AUD
View
B+
Retailer 15
-
£459 GBP
$615 USD
View
B
Retailer 16
-
£488 GBP
View
B
Retailer 17
-
£555 GBP
$744 USD
View
B
Retailer 18
-
£595 GBP
$798 USD
View
B
Retailer 19
-
£607 GBP
$813 USD
View
B
Retailer 20
-
£811 GBP
View
Most Expensive
B
Reve Diamonds
2FFF9D2EF · Oct 30
£859 GBP
$1,151 USD
View
20 more retailers have this diamond
Prices start from £140 GBPSave up to £719 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
£140 GBP