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Heart|Natural|GIA

1.50ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 7551128182

Certificate GIA 7551128182

Diamond specifications and retailer prices

From £2,614 GBP
HK$27,400 HKD
As of November 2, 2026
Save £2,709 GBP (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £6,321 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7551128182. Listed at 18 retailers as of November 2, 2026, with a 104% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551128182
Dimensions7.91 × 6.67 × 4.72 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
7.91 mm6.67 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551128182
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 59.7%

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 2
Current: £5,323 GBP|Low: £2,575 GBP|High: £5,715 GBP|Avg: £3,486 GBP|-6.3%
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
Retailer 16
November 2, 2026
Retailer 11£2,614 GBP
Retailer 16£2,622 GBP
Retailer 15£2,751 GBP
Retailer 13£2,794 GBP
Retailer 7£2,903 GBP
Retailer 2£2,940 GBP
Retailer 6£2,946 GBP
Retailer 4£2,947 GBP
Retailer 10£3,204 GBP
Retailer 9£3,242 GBP
Retailer 14£3,419 GBP
Retailer 8£3,562 GBP
Retailer 3£4,137 GBP
Retailer 12£4,456 GBP
Retailer 1£5,323 GBP
Retailer 5£5,474 GBP

26 data points across 16 retailers

18 retailers£2,614 GBP to £5,323 GBP

A
Cheapest Retailer
-
£2,614 GBP
HK$27,400 HKD
A
Retailer 2
-
£2,622 GBP
$3,518 USD
View
A
Retailer 3
-
£2,751 GBP
$3,692 USD
View
A
Retailer 4
-
£2,794 GBP
$3,750 USD
View
Final sale: no returns
A
Retailer 5
-
£2,903 GBP
$3,895 USD
View
A
Retailer 6
-
£2,940 GBP
€3,757 EUR
View
A
Retailer 7
-
£2,946 GBP
$3,954 USD
View
A
Retailer 8
-
£2,947 GBP
$3,955 USD
View
B+
Retailer 9
-
£3,204 GBP
$4,300 USD
View
B+
Retailer 10
-
£3,242 GBP
$4,350 USD
View
B+
Retailer 11
-
£3,419 GBP
View
Retailer 12
-
£3,562 GBP
A$7,353 AUD
View
Price last confirmed 23 days ago
B+
Retailer 13
-
£3,801 GBP
A$7,848 AUD
View
B
Retailer 14
-
£4,137 GBP
ZAR 89,688 ZAR
View
B
Retailer 15
-
£4,456 GBP
$5,980 USD
View
B
Retailer 16
-
£5,323 GBP
View
Retailer 17
-
£5,474 GBP
$7,346 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
40b694ec-f3d7-485e-9867-0a6742bb329e · Sep 25
£6,321 GBP
$8,483 USD
View
Price last confirmed 38 days ago
17 more retailers have this diamond
Prices start from £2,614 GBPSave up to £2,709 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
£2,614 GBP