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Heart|Natural|GIA

1.70ct J SI1 Heart Natural Diamond

VG • J/SI1 • GIA 5553096398

Certificate GIA 5553096398

Diamond specifications and retailer prices

From £2,919 GBP
HK$30,600 HKD
As of November 2, 2026
Save £3,251 GBP (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £6,711 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.7ct natural heart diamond

This 1.7ct natural heart sits in the one-and-a-half to two carat band, graded J 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 5553096398. Listed at 17 retailers as of November 2, 2026, with a 111% 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

1.70
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553096398
Dimensions8.04 × 7.31 × 4.74 mm
L/W Ratio1.10
Top View
8.04 mm7.31 mm1.70 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553096398
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 59.0%

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: £3,737 GBP|Low: £2,890 GBP|High: £6,511 GBP|Avg: £4,067 GBP|-4.1%
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 3, 2026
Retailer 12£2,919 GBP
Retailer 11£3,182 GBP
Retailer 4£3,288 GBP
Retailer 9£3,465 GBP
Retailer 15£3,496 GBP
Retailer 14£3,575 GBP
Retailer 6£3,599 GBP
Retailer 16£3,637 GBP
Retailer 3£3,715 GBP
Retailer 1£3,737 GBP
Retailer 8£4,045 GBP
Retailer 13£4,382 GBP
Retailer 2£4,762 GBP
Retailer 7£4,836 GBP
Retailer 5£6,087 GBP
Retailer 10£6,170 GBP

28 data points across 16 retailers

17 retailers£2,919 GBP to £6,170 GBP

A
Cheapest Retailer
-
£2,919 GBP
HK$30,600 HKD
B+
Retailer 2
-
£3,182 GBP
$4,270 USD
View
B+
Retailer 3
-
£3,288 GBP
$4,412 USD
View
B+
Retailer 4
-
£3,465 GBP
A$7,153 AUD
View
B
Retailer 5
-
£3,496 GBP
$4,692 USD
View
B
Retailer 6
-
£3,575 GBP
$4,798 USD
View
Final sale: no returns
B
Retailer 7
-
£3,599 GBP
$4,830 USD
View
B
Retailer 8
-
£3,637 GBP
$4,880 USD
View
B+
Retailer 9
-
£3,715 GBP
$4,985 USD
View
B+
Retailer 10
-
£3,737 GBP
View
Retailer 11
-
£4,045 GBP
A$8,351 AUD
View
Price last confirmed 24 days ago
B
Retailer 12
-
£4,382 GBP
€5,601 EUR
View
B
Retailer 13
-
£4,762 GBP
ZAR 103,230 ZAR
View
B
Retailer 14
-
£4,836 GBP
$6,490 USD
View
Retailer 15
-
£6,087 GBP
$8,168 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
£6,170 GBP
View
Most Expensive
NZ Jewellers
c9f7d8ae-d1e8-4f43-8fda-f83e4a8ff659 · Sep 20
£6,711 GBP
$9,006 USD
View
Price last confirmed 43 days ago
16 more retailers have this diamond
Prices start from £2,919 GBPSave up to £3,251 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
1.70ct Heart
£2,919 GBP