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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 2544288656

Certificate GIA 2544288656

Diamond specifications and retailer prices

From £2,598 GBP
HK$27,200 HKD
As of November 1, 2026
Save £2,618 GBP (50%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,290 GBP at NZ Jewellers · As of September 25, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2544288656. Listed at 17 retailers as of November 1, 2026, with a 101% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle43°
OriginNatural
Grading LabGIA
CertificateGIA 2544288656
Dimensions6.62 × 7.86 × 4.98 mm
L/W Ratio1.19
Top View
6.62 mm7.86 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544288656
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 43°Culet: NoneDepth 63.4%

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: £2,779 GBP|Low: £2,598 GBP|High: £5,758 GBP|Avg: £3,440 GBP|+3.2%
Retailer 1
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
November 2, 2026
Retailer 12£2,598 GBP
Retailer 11£2,643 GBP
Retailer 9£2,774 GBP
Retailer 1£2,779 GBP
Retailer 2£2,888 GBP
Retailer 14£2,963 GBP
Retailer 5£2,968 GBP
Retailer 3£2,971 GBP
Retailer 10£3,157 GBP
Retailer 8£3,400 GBP
Retailer 6£3,512 GBP
Retailer 7£3,543 GBP
Retailer 15£4,114 GBP
Retailer 13£5,216 GBP
Retailer 4£5,517 GBP

27 data points across 15 retailers

17 retailers£2,598 GBP to £5,216 GBP

A
Cheapest Retailer
-
£2,598 GBP
HK$27,200 HKD
A
Retailer 2
-
£2,643 GBP
$3,541 USD
View
A
Retailer 3
-
£2,774 GBP
$3,717 USD
View
A
Retailer 4
-
£2,779 GBP
$3,724 USD
View
Final sale: no returns
A
Retailer 5
-
£2,888 GBP
$3,870 USD
View
A
Retailer 6
-
£2,963 GBP
€3,780 EUR
View
A
Retailer 7
-
£2,968 GBP
$3,977 USD
View
A
Retailer 8
-
£2,971 GBP
$3,980 USD
View
A
Retailer 9
-
£3,157 GBP
$4,230 USD
View
B+
Retailer 10
-
£3,400 GBP
View
B+
Retailer 11
-
£3,512 GBP
$4,706 USD
View
Retailer 12
-
£3,543 GBP
A$7,304 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
£3,831 GBP
A$7,898 AUD
View
B+
Retailer 14
-
£4,114 GBP
ZAR 89,057 ZAR
View
B
Retailer 15
-
£5,216 GBP
View
Retailer 16
-
£5,517 GBP
$7,392 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
800dfda8-04a8-4f54-91df-e519e21560f8 · Sep 25
£6,290 GBP
$8,428 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from £2,598 GBPSave up to £2,618 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
£2,598 GBP