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Heart|Natural|GIA

1.54ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 1448897098

Certificate GIA 1448897098

Diamond specifications and retailer prices

From £4,093 GBP
As of November 6, 2026
Save £5,130 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £9,223 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1448897098. Listed at 18 retailers as of November 5, 2026, with prices from £4,093 to £9,223, a £5,130 spread on the same certified stone. NZ Jewellers lists it at £9,223. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1448897098
Dimensions6.73 × 7.93 × 4.67 mm
L/W Ratio1.18
Key to symbols
Twinning Wisp, Feather, Needle, Indented Natural
Top View
6.73 mm7.93 mm1.54 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1448897098
Side View
Table 58.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 58.9%

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: £9,223 GBP|Low: £4,064 GBP|High: £9,223 GBP|Avg: £5,677 GBP
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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 13£4,093 GBP
Retailer 8£4,486 GBP
Retailer 5£4,781 GBP
Retailer 4£5,089 GBP
Retailer 16£5,090 GBP
Retailer 6£5,095 GBP
Retailer 2£5,131 GBP
Retailer 11£5,151 GBP
Retailer 14£5,352 GBP
Retailer 7£5,379 GBP
Retailer 17£5,514 GBP
Retailer 9£5,570 GBP
Retailer 15£5,599 GBP
Retailer 3£6,362 GBP
Retailer 10£6,728 GBP
Retailer 12£7,665 GBP
NZ Jewellers£9,223 GBP

29 data points across 17 retailers

18 retailers£4,093 GBP to £9,223 GBP

A
Cheapest Retailer
-
£4,093 GBP
Retailer 2
-
£4,672 GBP
View
Price last confirmed 22 days ago
B+
Retailer 3
-
£4,781 GBP
View
B+
Retailer 4
-
£4,809 GBP
View
B+
Retailer 5
-
£5,089 GBP
View
Final sale: no returns
Retailer 6
-
£5,090 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£5,095 GBP
View
B+
Retailer 8
-
£5,131 GBP
View
B+
Retailer 9
-
£5,151 GBP
View
Retailer 10
-
£5,352 GBP
View
Price last confirmed 15 days ago
B+
Retailer 11
-
£5,379 GBP
View
B+
Retailer 12
-
£5,514 GBP
View
B+
Retailer 13
-
£5,599 GBP
View
B+
Retailer 14
-
£5,638 GBP
View
B+
Retailer 15
-
£6,362 GBP
View
B+
Retailer 16
-
£6,728 GBP
View
B
Retailer 17
-
£7,665 GBP
View
Most Expensive
B
NZ Jewellers
d1e983d9-3c9d-4196-bdd2-7378c31d4fa5 · Nov 5
£9,223 GBP
$12,345 USD
View
17 more retailers have this diamond
Prices start from £4,093 GBPSave up to £5,130 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
£4,093 GBP