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Heart|Natural|GIA

1.54ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 6535937549

Certificate GIA 6535937549

Diamond specifications and retailer prices

From £2,225 GBP
As of November 6, 2026
Save £2,466 GBP (53%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £4,691 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.54ct natural heart diamond

This 1.54ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535937549. Listed at 14 retailers as of November 5, 2026, with prices from £2,225 to £4,691, a £2,466 spread on the same certified stone. NZ Jewellers lists it at £4,691. 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

1.54
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.93°
OriginNatural
Grading LabGIA
CertificateGIA 6535937549
Dimensions8.18 × 7.25 × 4.53 mm
L/W Ratio1.13
Top View
8.18 mm7.25 mm1.54 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535937549
Side View
Table 58.0%Crown 34.93°Girdle: MED-VTKPavilionCulet: NoneDepth 55.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,691 GBP|Low: £2,225 GBP|High: £4,982 GBP|Avg: £3,090 GBP|-5.8%
NZ Jewellers
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
November 6, 2026
Retailer 6£2,225 GBP
Retailer 13£2,390 GBP
Retailer 14£2,485 GBP
Retailer 2£2,612 GBP
Retailer 5£2,693 GBP
Retailer 11£2,693 GBP
Retailer 7£2,786 GBP
Retailer 4£2,796 GBP
Retailer 12£2,801 GBP
Retailer 3£2,846 GBP
Retailer 10£2,870 GBP
Retailer 9£3,106 GBP
Retailer 8£4,490 GBP
NZ Jewellers£4,691 GBP

34 data points across 14 retailers

14 retailers£2,225 GBP to £4,691 GBP

A
Cheapest Retailer
-
£2,225 GBP
A
Retailer 2
-
£2,390 GBP
View
A
Retailer 3
-
£2,485 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,612 GBP
View
A
Retailer 5
-
£2,693 GBP
View
Retailer 6
-
£2,693 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£2,786 GBP
View
A
Retailer 8
-
£2,796 GBP
View
A
Retailer 9
-
£2,801 GBP
View
A
Retailer 10
-
£2,846 GBP
View
A
Retailer 11
-
£2,870 GBP
View
A
Retailer 12
-
£3,106 GBP
View
B
Retailer 13
-
£4,490 GBP
View
Most Expensive
B+
NZ Jewellers
ea83e2a4-0a00-4111-99d2-b0ae3617cafa · Nov 5
£4,691 GBP
$6,279 USD
View
13 more retailers have this diamond
Prices start from £2,225 GBPSave up to £2,466 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
1.54ct Heart
£2,225 GBP