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Heart|Lab Grown|IGI

1.51ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG835670046

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835670046

Diamond specifications and retailer prices

From £268 GBP
$359 USD
As of October 30, 2026
Save £1,031 GBP (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,299 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG835670046 or 835670046. Listed at 20 retailers as of October 30, 2026, with prices from £268 to £1,299, a £1,031 spread on the same certified stone. MOH London lists it at £1,299. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835670046
Dimensions7.26 × 8.02 × 4.44 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
7.26 mm8.02 mm1.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835670046
Side View
Table 61.0%Crown 34.9°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 55.4%

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: £1,299 GBP|Low: £268 GBP|High: £1,305 GBP|Avg: £686 GBP|-0.5%
MOH London
Retailer 2
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Retailer 20
November 1, 2026
Retailer 10£268 GBP
Retailer 4£300 GBP
Retailer 6£310 GBP
Retailer 17£332 GBP
Retailer 2£351 GBP
Retailer 8£444 GBP
Retailer 5£469 GBP
Retailer 14£534 GBP
Retailer 3£571 GBP
Retailer 19£578 GBP
Retailer 13£599 GBP
Retailer 11£758 GBP
Retailer 9£768 GBP
Retailer 18£771 GBP
Retailer 16£820 GBP
Retailer 20£1,068 GBP
Retailer 12£1,099 GBP
Retailer 15£1,155 GBP
Retailer 7£1,270 GBP
MOH London£1,299 GBP

7 data points across 20 retailers

20 retailers£268 GBP to £1,299 GBP

A
Cheapest Retailer
-
£268 GBP
$359 USD
A
Retailer 2
-
£300 GBP
$402 USD
View
Final sale: no returns
A
Retailer 3
-
£310 GBP
$416 USD
View
A
Retailer 4
-
£332 GBP
$445 USD
View
A
Retailer 5
-
£351 GBP
View
A
Retailer 6
-
£444 GBP
$595 USD
View
A
Retailer 7
-
£469 GBP
$628 USD
View
A
Retailer 8
-
£534 GBP
€682 EUR
View
A
Retailer 9
-
£571 GBP
ZAR 12,359 ZAR
View
A
Retailer 10
-
£578 GBP
$774 USD
View
A
Retailer 11
-
£599 GBP
View
B+
Retailer 12
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£758 GBP
$1,016 USD
View
B+
Retailer 13
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£768 GBP
$1,029 USD
View
B+
Retailer 14
-
£771 GBP
A$1,590 AUD
View
B+
Retailer 15
-
£820 GBP
$1,099 USD
View
B
Retailer 16
-
£1,068 GBP
$1,431 USD
View
B+
Retailer 17
-
£1,099 GBP
$1,472 USD
View
B+
Retailer 18
-
£1,155 GBP
$1,548 USD
View
B
Retailer 19
-
£1,270 GBP
$1,701 USD
View
Most Expensive
B
MOH London
LG835670046 · Nov 1
£1,299 GBP
View
19 more retailers have this diamond
Prices start from £268 GBPSave up to £1,031 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
1.51ct Heart
£268 GBP