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Heart|Lab Grown|IGI

0.91ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG613382974

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG613382974

Diamond specifications and retailer prices

From £104 GBP
$140 USD
As of October 30, 2026
Save £502 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £607 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.91ct lab-grown heart diamond

This 0.91ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG613382974 or 613382974. Listed at 16 retailers as of October 30, 2026, with prices from £104 to £607, a £502 spread on the same certified stone. MOH London lists it at £607. 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

0.91
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG613382974
Dimensions6.19 × 6.74 × 3.83 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.19 mm6.74 mm0.91 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG613382974
Side View
Table 56.0%Crown 33.3°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 56.8%

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: £607 GBP|Low: £104 GBP|High: £981 GBP|Avg: £289 GBP|-38.2%
MOH London
Retailer 2
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Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
November 1, 2026
Retailer 15£104 GBP
Retailer 12£122 GBP
Retailer 3£130 GBP
Retailer 4£130 GBP
Retailer 14£172 GBP
Retailer 6£197 GBP
Retailer 9£215 GBP
Retailer 2£220 GBP
Retailer 7£242 GBP
Retailer 11£267 GBP
Retailer 5£366 GBP
Retailer 8£403 GBP
Retailer 16£417 GBP
Retailer 10£425 GBP
Retailer 13£440 GBP
MOH London£607 GBP

36 data points across 16 retailers

16 retailers£104 GBP to £607 GBP

A
Cheapest Retailer
-
£104 GBP
$140 USD
A
Retailer 2
-
£122 GBP
$163 USD
View
A
Retailer 3
-
£130 GBP
$174 USD
View
A
Retailer 4
-
£130 GBP
$174 USD
View
Retailer 5
-
£172 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
£197 GBP
$264 USD
View
A
Retailer 7
-
£215 GBP
€274 EUR
View
B+
Retailer 8
-
£220 GBP
View
B+
Retailer 9
-
£242 GBP
$324 USD
View
B+
Retailer 10
-
£267 GBP
View
B
Retailer 11
-
£366 GBP
$490 USD
View
B
Retailer 12
-
£403 GBP
$540 USD
View
B
Retailer 13
-
£417 GBP
$559 USD
View
B
Retailer 14
-
£425 GBP
$570 USD
View
B
Retailer 15
-
£440 GBP
$590 USD
View
Most Expensive
B
MOH London
LG613382974 · Nov 1
£607 GBP
View
15 more retailers have this diamond
Prices start from £104 GBPSave up to £502 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
0.91ct Heart
£104 GBP