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Heart|Lab Grown|IGI

1.41ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG669426929

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG669426929

Diamond specifications and retailer prices

From £166 GBP
As of November 6, 2026
Save £777 GBP (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £943 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.41ct lab-grown heart diamond

This 1.41ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG669426929 or 669426929. Listed at 17 retailers as of November 6, 2026, with prices from £166 to £943, a £777 spread on the same certified stone. Reve Diamonds lists it at £943. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.41
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669426929
Dimensions6.73 × 7.73 × 4.67 mm
L/W Ratio1.15
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
6.73 mm7.73 mm1.41 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669426929
Side View
Table 62.0%Crown 36.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £378 GBP|Low: £158 GBP|High: £1,225 GBP|Avg: £478 GBP|+4.8%
Retailer 1
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Retailer 11
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Retailer 15
Reve Diamonds
November 5, 2026
Retailer 13£166 GBP
Retailer 11£185 GBP
Retailer 6£192 GBP
Retailer 2£205 GBP
Retailer 4£205 GBP
Retailer 3£350 GBP
Retailer 1£378 GBP
Retailer 15£391 GBP
Retailer 12£416 GBP
Retailer 7£439 GBP
Retailer 14£660 GBP
Retailer 9£662 GBP
Retailer 5£699 GBP
Retailer 10£799 GBP
Retailer 8£820 GBP
Reve Diamonds£943 GBP

45 data points across 16 retailers

17 retailers£166 GBP to £943 GBP

A
Cheapest Retailer
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£166 GBP
A
Retailer 2
-
£185 GBP
View
Final sale: no returns
A
Retailer 3
-
£192 GBP
View
A
Retailer 4
-
£205 GBP
View
Retailer 5
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£205 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£350 GBP
View
B+
Retailer 7
-
£378 GBP
View
B+
Retailer 8
-
£391 GBP
View
B+
Retailer 9
-
£416 GBP
View
B+
Retailer 10
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£439 GBP
View
B
Retailer 11
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£571 GBP
View
B
Retailer 12
-
£660 GBP
View
B
Retailer 13
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£662 GBP
View
B
Retailer 14
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£699 GBP
View
B
Retailer 15
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£799 GBP
View
B
Retailer 16
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£820 GBP
View
Most Expensive
B
Reve Diamonds
32CBA2A61 · Nov 6
£943 GBP
$1,262 USD
View
16 more retailers have this diamond
Prices start from £166 GBPSave up to £777 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
1.41ct Heart
£166 GBP