Heart|Lab Grown|IGI

1.53ct H SI1 Heart Lab Grown Diamond

ID • H/SI1 • IGI LG425067502

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG425067502

Diamond specifications and retailer prices

From £732 GBP
As of November 6, 2026
Save £2,881 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,613 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.53ct lab-grown heart diamond

This 1.53ct lab-grown heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067502 or 425067502. Listed at 11 retailers as of November 1, 2026, with prices from £732 to £3,613, a £2,881 spread on the same certified stone. MOH London lists it at £3,613. 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

1.53
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.9°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067502
Dimensions8.08 × 7.35 × 4.33 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.08 mm7.35 mm1.53 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067502
Side View
Table 58.0%Crown 33.9°Girdle: STK-THKPavilion 38°Culet: NoneDepth 53.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,613 GBP|Low: £732 GBP|High: £3,657 GBP|Avg: £1,975 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2£732 GBP
Retailer 3£1,091 GBP
Retailer 6£1,221 GBP
Retailer 4£1,265 GBP
Retailer 7£1,393 GBP
Retailer 9£1,718 GBP
Retailer 5£1,996 GBP
Retailer 8£2,296 GBP
MOH London£3,613 GBP
Retailer 10£3,621 GBP

13 data points across 10 retailers

11 retailers£732 GBP to £3,613 GBP

B+
Cheapest Retailer
-
£732 GBP
B
Retailer 2
-
£1,091 GBP
View
B
Retailer 3
-
£1,186 GBP
View
B
Retailer 4
-
£1,221 GBP
View
Final sale: no returns
B
Retailer 5
-
£1,265 GBP
View
Retailer 6
-
£1,265 GBP
View
Price last confirmed 25 days ago
B
Retailer 7
-
£1,393 GBP
View
B
Retailer 8
-
£1,996 GBP
View
B
Retailer 9
-
£2,296 GBP
View
B
Retailer 10
-
£2,371 GBP
View
Most Expensive
B
MOH London
LG425067502 · Nov 1
£3,613 GBP
View
10 more retailers have this diamond
Prices start from £732 GBPSave up to £2,881 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.

B+
1.53ct Heart
£732 GBP