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Heart|Lab Grown|IGI

1.01ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG821698230

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821698230

Diamond specifications and retailer prices

From £107 GBP
As of November 6, 2026
Save £648 GBP (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £755 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.01ct lab-grown heart diamond

This 1.01ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG821698230 or 821698230. Listed at 17 retailers as of November 6, 2026, with prices from £107 to £755, a £648 spread on the same certified stone. Reve Diamonds lists it at £755. 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821698230
Dimensions7.05 × 6.07 × 3.93 mm
L/W Ratio1.16
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.05 mm6.07 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821698230
Side View
Table 67.0%Crown 32.3°Girdle: THK-VTKPavilion 39.7°Culet: NoneDepth 55.7%

Caratlytics Score

How it works →
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: Nov 6
Current: £424 GBP|Low: £103 GBP|High: £755 GBP|Avg: £306 GBP|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 16
Reve Diamonds
November 6, 2026
Retailer 9£107 GBP
Retailer 4£120 GBP
Retailer 11£123 GBP
Retailer 15£132 GBP
Retailer 16£132 GBP
Retailer 10£157 GBP
Retailer 6£183 GBP
Retailer 12£224 GBP
Retailer 7£238 GBP
Retailer 14£250 GBP
Retailer 3£315 GBP
Retailer 1£424 GBP
Retailer 2£448 GBP
Retailer 5£465 GBP
Retailer 8£478 GBP
Retailer 13£617 GBP
Reve Diamonds£755 GBP

40 data points across 17 retailers

17 retailers£107 GBP to £755 GBP

A
Cheapest Retailer
-
£107 GBP
A
Retailer 2
-
£120 GBP
View
Final sale: no returns
A
Retailer 3
-
£123 GBP
View
A
Retailer 4
-
£132 GBP
View
Retailer 5
-
£132 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£157 GBP
View
B+
Retailer 7
-
£183 GBP
View
B+
Retailer 8
-
£224 GBP
View
B+
Retailer 9
-
£238 GBP
View
B+
Retailer 10
-
£250 GBP
View
B+
Retailer 11
-
£315 GBP
View
B
Retailer 12
-
£424 GBP
View
B
Retailer 13
-
£448 GBP
View
B
Retailer 14
-
£465 GBP
View
B
Retailer 15
-
£478 GBP
View
B
Retailer 16
-
£617 GBP
View
Most Expensive
B
Reve Diamonds
263C758DC · Nov 6
£755 GBP
$1,010 USD
View
16 more retailers have this diamond
Prices start from £107 GBPSave up to £648 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
1.01ct Heart
£107 GBP