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Heart|Lab Grown|IGI

0.99ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG833632368

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG833632368

Diamond specifications and retailer prices

From £124 GBP
$165 USD
As of October 27, 2026
Save £520 GBP (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £644 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.99ct lab-grown heart diamond

This 0.99ct lab-grown heart sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG833632368 or 833632368. Listed at 18 retailers as of October 25, 2026, with prices from £124 to £644, a £520 spread on the same certified stone. MOH London lists it at £644. 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

0.99
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833632368
Dimensions6.92 × 6.24 × 4.05 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.92 mm6.24 mm0.99 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG833632368
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.5%

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: Oct 27
Current: £644 GBP|Low: £124 GBP|High: £656 GBP|Avg: £301 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 28, 2026
Retailer 13£124 GBP
Retailer 4£137 GBP
Retailer 10£154 GBP
Retailer 7£182 GBP
Retailer 5£197 GBP
Retailer 6£235 GBP
Retailer 8£236 GBP
Retailer 12£253 GBP
Retailer 9£295 GBP
Retailer 11£351 GBP
Retailer 2£375 GBP
Retailer 3£638 GBP
MOH London£644 GBP

41 data points across 13 retailers

18 retailers£124 GBP to £644 GBP

A
Retailer 1
-
£111 GBP
$148 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£112 GBP
$149 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
£124 GBP
$165 USD
View
Final sale: no returns
A
Retailer 4
-
£130 GBP
$173 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
£137 GBP
$182 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
£137 GBP
$183 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
£154 GBP
HK$1,600 HKD
View
A
Retailer 8
-
£182 GBP
View
A
Retailer 9
-
£197 GBP
$263 USD
View
B+
Retailer 10
-
£235 GBP
€298 EUR
View
B+
Retailer 11
-
£236 GBP
View
B+
Retailer 12
-
£253 GBP
$337 USD
View
B+
Retailer 13
-
£295 GBP
View
B
Retailer 14
-
£351 GBP
$467 USD
View
B
Retailer 15
-
£375 GBP
SGD 674 SGD
View
B
Retailer 16
-
£446 GBP
$594 USD
View
Price last confirmed 28 days ago
B
Retailer 17
-
£638 GBP
$850 USD
View
Most Expensive
B
MOH London
LG833632368 · Oct 25
£644 GBP
View
17 more retailers have this diamond
Prices start from £124 GBPSave up to £520 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
0.99ct Heart
£124 GBP