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Heart|Natural|GIA

1.55ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 6441897130

Certificate GIA 6441897130

Diamond specifications and retailer prices

From £3,749 GBP
HK$39,300 HKD
As of November 1, 2026
Save £4,698 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £8,447 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6441897130. Listed at 18 retailers as of October 30, 2026, with prices from £3,749 to £8,447, a £4,698 spread on the same certified stone. NZ Jewellers lists it at £8,447. 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

1.55
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6441897130
Dimensions6.94 × 8.05 × 4.62 mm
L/W Ratio1.16
Top View
6.94 mm8.05 mm1.55 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6441897130
Side View
Table 60.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 57.4%

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 1
Current: £8,447 GBP|Low: £3,720 GBP|High: £8,447 GBP|Avg: £5,196 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
Retailer 18
November 2, 2026
Retailer 13£3,749 GBP
Retailer 7£4,182 GBP
Retailer 4£4,395 GBP
Retailer 5£4,404 GBP
Retailer 3£4,662 GBP
Retailer 16£4,662 GBP
Retailer 8£4,684 GBP
Retailer 2£4,759 GBP
Retailer 11£4,844 GBP
Retailer 6£4,956 GBP
Retailer 17£5,050 GBP
Retailer 9£5,100 GBP
Retailer 15£5,128 GBP
Retailer 10£5,169 GBP
Retailer 18£5,827 GBP
Retailer 12£6,205 GBP
Retailer 14£7,480 GBP
NZ Jewellers£8,447 GBP

25 data points across 18 retailers

18 retailers£3,749 GBP to £8,447 GBP

A
Cheapest Retailer
-
£3,749 GBP
HK$39,300 HKD
Retailer 2
-
£4,278 GBP
SGD 7,757 SGD
View
Price last confirmed 19 days ago
B+
Retailer 3
-
£4,395 GBP
$5,898 USD
View
B+
Retailer 4
-
£4,404 GBP
$5,910 USD
View
B+
Retailer 5
-
£4,662 GBP
$6,256 USD
View
Final sale: no returns
B+
Retailer 6
-
£4,662 GBP
$6,256 USD
View
B+
Retailer 7
-
£4,684 GBP
$6,285 USD
View
B+
Retailer 8
-
£4,759 GBP
View
B+
Retailer 9
-
£4,844 GBP
View
B+
Retailer 10
-
£4,956 GBP
$6,650 USD
View
B+
Retailer 11
-
£5,050 GBP
$6,777 USD
View
B
Retailer 12
-
£5,128 GBP
$6,882 USD
View
B
Retailer 13
-
£5,169 GBP
$6,937 USD
View
B
Retailer 14
-
£5,170 GBP
$6,937 USD
View
B+
Retailer 15
-
£5,827 GBP
$7,820 USD
View
B
Retailer 16
-
£6,205 GBP
ZAR 134,524 ZAR
View
B
Retailer 17
-
£7,480 GBP
View
Most Expensive
B
NZ Jewellers
b9356975-5eee-4ee9-abb6-5ee470865518 · Oct 30
£8,447 GBP
$11,335 USD
View
17 more retailers have this diamond
Prices start from £3,749 GBPSave up to £4,698 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
1.55ct Heart
£3,749 GBP