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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 6555064318

Certificate GIA 6555064318

Diamond specifications and retailer prices

From £2,274 GBP
HK$23,800 HKD
As of November 1, 2026
Save £2,706 GBP (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £5,188 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555064318. Listed at 20 retailers as of November 1, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555064318
Dimensions7.12 × 7.69 × 4.83 mm
L/W Ratio1.08
Top View
7.12 mm7.69 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555064318
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.8%

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: £5,188 GBP|Low: £2,255 GBP|High: £5,241 GBP|Avg: £3,238 GBP|-1.0%
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 2, 2026
Retailer 12£2,274 GBP
Retailer 6£2,295 GBP
Retailer 9£2,426 GBP
Retailer 2£2,825 GBP
Retailer 13£2,840 GBP
Retailer 5£2,978 GBP
Retailer 14£2,978 GBP
Retailer 8£3,046 GBP
Retailer 3£3,087 GBP
Retailer 7£3,369 GBP
Retailer 4£3,435 GBP
Retailer 11£3,660 GBP
Retailer 10£4,980 GBP
NZ Jewellers£5,188 GBP

23 data points across 14 retailers

20 retailers£2,274 GBP to £4,980 GBP

A
Cheapest Retailer
-
£2,274 GBP
HK$23,800 HKD
A
Retailer 2
-
£2,295 GBP
SGD 4,155 SGD
View
A
Retailer 3
-
£2,426 GBP
₹309,574 INR
View
B+
Retailer 4
-
£2,784 GBP
$3,730 USD
View
A
Retailer 5
-
£2,825 GBP
View
A
Retailer 6
-
£2,840 GBP
$3,805 USD
View
B+
Retailer 7
-
£2,863 GBP
SGD 5,184 SGD
View
B+
Retailer 8
-
£2,949 GBP
A$6,078 AUD
View
B+
Retailer 9
-
£2,978 GBP
$3,990 USD
View
Retailer 10
-
£2,978 GBP
$3,990 USD
View
Price last confirmed 15 days ago
Retailer 11
-
£3,008 GBP
$4,030 USD
View
Price last confirmed 17 days ago
Retailer 12
-
£3,008 GBP
$4,030 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
£3,046 GBP
View
B+
Retailer 14
-
£3,087 GBP
$4,137 USD
View
Retailer 15
-
£3,251 GBP
A$6,701 AUD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
£3,369 GBP
€4,299 EUR
View
Retailer 17
-
£3,435 GBP
$4,603 USD
View
Price last confirmed 14 days ago
B+
Retailer 18
-
£3,660 GBP
ZAR 79,226 ZAR
View
B
Retailer 19
-
£4,980 GBP
View
Most Expensive
NZ Jewellers
f9e3c87c-e509-49a6-942c-5fce45b2c087 · Oct 18
£5,188 GBP
$6,951 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from £2,274 GBPSave up to £2,706 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
1.50ct Heart
£2,274 GBP