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Heart|Lab Grown|IGI

0.94ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG844642816

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG844642816

Diamond specifications and retailer prices

From £287 GBP
As of November 5, 2026
Save £921 GBP (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,208 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.94ct lab-grown heart diamond

This 0.94ct 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 LG844642816 or 844642816. Listed at 18 retailers as of November 4, 2026, with prices from £287 to £1,208, a £921 spread on the same certified stone. Riddles Jewelry lists it at £1,208. 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

0.94
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844642816
Dimensions6.82 × 5.93 × 4.02 mm
L/W Ratio1.15
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
6.82 mm5.93 mm0.94 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844642816
Side View
Table 59.0%Crown 35.3°Girdle: MED-THKPavilion 41.5°Culet: NoneDepth 58.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £510 GBP|Low: £287 GBP|High: £1,208 GBP|Avg: £757 GBP|+0.1%
Retailer 1
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Retailer 11
Retailer 12
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Retailer 16
Riddles Jewelry
November 5, 2026
Retailer 16£287 GBP
Retailer 10£353 GBP
Retailer 8£459 GBP
Retailer 4£468 GBP
Retailer 3£469 GBP
Retailer 1£510 GBP
Retailer 12£524 GBP
Retailer 2£619 GBP
Retailer 11£726 GBP
Retailer 14£734 GBP
Retailer 13£932 GBP
Retailer 5£963 GBP
Retailer 6£1,023 GBP
Retailer 7£1,038 GBP
Retailer 9£1,155 GBP
Retailer 15£1,155 GBP
Riddles Jewelry£1,208 GBP

23 data points across 17 retailers

18 retailers£287 GBP to £1,208 GBP

A
Cheapest Retailer
-
£287 GBP
Final sale: no returns
A
Retailer 2
-
£353 GBP
View
A
Retailer 3
-
£459 GBP
View
A
Retailer 4
-
£468 GBP
View
A
Retailer 5
-
£469 GBP
View
A
Retailer 6
-
£510 GBP
View
B+
Retailer 7
-
£524 GBP
View
B+
Retailer 8
-
£619 GBP
View
B+
Retailer 9
-
£726 GBP
View
B+
Retailer 10
-
£734 GBP
View
B
Retailer 11
-
£932 GBP
View
B
Retailer 12
-
£963 GBP
View
B
Retailer 13
-
£1,023 GBP
View
B
Retailer 14
-
£1,038 GBP
View
B
Retailer 15
-
£1,096 GBP
View
B
Retailer 16
-
£1,155 GBP
View
B
Retailer 17
-
£1,155 GBP
View
Most Expensive
B
Riddles Jewelry
1992683459 · Nov 4
£1,208 GBP
$1,631 USD
View
17 more retailers have this diamond
Prices start from £287 GBPSave up to £921 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
0.94ct Heart
£287 GBP