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Heart|Lab Grown|IGI

0.86ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG844618747

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844618747

Diamond specifications and retailer prices

From £382 GBP
As of November 5, 2026
Save £1,347 GBP (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,730 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.86ct lab-grown heart diamond

This 0.86ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG844618747 or 844618747. Listed at 17 retailers as of November 4, 2026, with prices from £382 to £1,730, a £1,347 spread on the same certified stone. Riddles Jewelry lists it at £1,730. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.86
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844618747
Dimensions6.74 × 5.98 × 3.73 mm
L/W Ratio1.13
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
6.74 mm5.98 mm0.86 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844618747
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 55.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £613 GBP|Low: £382 GBP|High: £1,730 GBP|Avg: £936 GBP|-0.2%
Retailer 1
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Retailer 12
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Retailer 16
Riddles Jewelry
November 5, 2026
Retailer 16£382 GBP
Retailer 5£460 GBP
Retailer 14£466 GBP
Retailer 11£491 GBP
Retailer 3£599 GBP
Retailer 8£600 GBP
Retailer 1£613 GBP
Retailer 12£683 GBP
Retailer 2£824 GBP
Retailer 13£895 GBP
Retailer 9£940 GBP
Retailer 7£1,235 GBP
Retailer 4£1,247 GBP
Retailer 15£1,379 GBP
Retailer 6£1,382 GBP
Retailer 10£1,466 GBP
Riddles Jewelry£1,730 GBP

21 data points across 17 retailers

17 retailers£382 GBP to £1,730 GBP

A
Cheapest Retailer
-
£382 GBP
Final sale: no returns
A
Retailer 2
-
£460 GBP
View
B+
Retailer 3
-
£466 GBP
View
A
Retailer 4
-
£491 GBP
View
B+
Retailer 5
-
£599 GBP
View
B+
Retailer 6
-
£600 GBP
View
B+
Retailer 7
-
£613 GBP
View
B+
Retailer 8
-
£683 GBP
View
B+
Retailer 9
-
£824 GBP
View
B
Retailer 10
-
£895 GBP
View
B
Retailer 11
-
£940 GBP
View
B
Retailer 12
-
£1,235 GBP
View
B
Retailer 13
-
£1,247 GBP
View
B
Retailer 14
-
£1,379 GBP
View
B
Retailer 15
-
£1,382 GBP
View
B
Retailer 16
-
£1,466 GBP
View
Most Expensive
B
Riddles Jewelry
1993827648 · Nov 4
£1,730 GBP
$2,335 USD
View
16 more retailers have this diamond
Prices start from £382 GBPSave up to £1,347 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
0.86ct Heart
£382 GBP