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Heart|Lab Grown|IGI

0.91ct F VVS2 Heart Lab Grown Diamond

ID • F/VVS2 • IGI LG591378159

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG591378159

Diamond specifications and retailer prices

From £108 GBP
$145 USD
As of October 30, 2026
Save £518 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £627 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.91ct lab-grown heart diamond

This 0.91ct lab-grown heart sits in the just-under-one-carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG591378159 or 591378159. Listed at 19 retailers as of October 30, 2026, with prices from £108 to £627, a £518 spread on the same certified stone. MOH London lists it at £627. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.91
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591378159
Dimensions6.28 × 6.64 × 3.86 mm
L/W Ratio1.06
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
6.28 mm6.64 mm0.91 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591378159
Side View
Table 62.0%Crown 38.7°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 58.1%

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: £627 GBP|Low: £107 GBP|High: £658 GBP|Avg: £293 GBP|-3.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 1, 2026
Retailer 6£108 GBP
Retailer 4£125 GBP
Retailer 9£125 GBP
Retailer 3£134 GBP
Retailer 16£134 GBP
Retailer 11£229 GBP
Retailer 12£235 GBP
Retailer 17£242 GBP
Retailer 10£244 GBP
Retailer 5£249 GBP
Retailer 13£276 GBP
Retailer 2£334 GBP
Retailer 15£431 GBP
Retailer 14£455 GBP
Retailer 7£472 GBP
Retailer 8£478 GBP
MOH London£627 GBP

44 data points across 17 retailers

19 retailers£108 GBP to £627 GBP

A
Cheapest Retailer
-
£108 GBP
$145 USD
A
Retailer 2
-
£125 GBP
$168 USD
View
A
Retailer 3
-
£125 GBP
$168 USD
View
Final sale: no returns
A
Retailer 4
-
£134 GBP
$180 USD
View
Retailer 5
-
£134 GBP
$180 USD
View
Price last confirmed 8 days ago
Retailer 6
-
£137 GBP
$184 USD
View
Price last confirmed 37 days ago
A
Retailer 7
-
£229 GBP
View
A
Retailer 8
-
£235 GBP
€300 EUR
View
A
Retailer 9
-
£242 GBP
$324 USD
View
A
Retailer 10
-
£244 GBP
ZAR 5,271 ZAR
View
A
Retailer 11
-
£249 GBP
$333 USD
View
A
Retailer 12
-
£276 GBP
View
B+
Retailer 13
-
£334 GBP
A$689 AUD
View
B+
Retailer 14
-
£340 GBP
$455 USD
View
B+
Retailer 15
-
£431 GBP
$577 USD
View
Retailer 16
-
£455 GBP
$610 USD
View
Price last confirmed 13 days ago
B
Retailer 17
-
£472 GBP
$633 USD
View
Retailer 18
-
£478 GBP
$640 USD
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
LG591378159 · Nov 1
£627 GBP
View
18 more retailers have this diamond
Prices start from £108 GBPSave up to £518 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
0.91ct Heart
£108 GBP