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Heart|Natural|GIA

1.70ct F SI2 Heart Natural Diamond

VG • F/SI2 • GIA 6492591889

Certificate GIA 6492591889

Diamond specifications and retailer prices

From £3,186 GBP
HK$33,400 HKD
As of November 2, 2026
Save £3,585 GBP (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,702 GBP at NZ Jewellers · As of September 25, 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6492591889. Listed at 13 retailers as of October 29, 2026, with a 113% 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle42.3°
OriginNatural
Grading LabGIA
CertificateGIA 6492591889
Dimensions8.31 × 7.28 × 4.26 mm
L/W Ratio1.14
Top View
8.31 mm7.28 mm1.70 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492591889
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 42.3°Culet: NoneDepth 58.5%

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: £3,786 GBP|Low: £3,138 GBP|High: £7,149 GBP|Avg: £4,234 GBP|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5£3,186 GBP
Retailer 10£3,338 GBP
Retailer 8£3,359 GBP
Retailer 2£3,517 GBP
Retailer 11£3,556 GBP
Retailer 6£3,559 GBP
Retailer 9£3,729 GBP
Retailer 1£3,786 GBP
Retailer 7£4,153 GBP
Retailer 4£4,354 GBP
Retailer 12£6,605 GBP
Retailer 3£6,770 GBP

38 data points across 12 retailers

13 retailers£3,186 GBP to £6,770 GBP

A
Cheapest Retailer
-
£3,186 GBP
HK$33,400 HKD
A
Retailer 2
-
£3,338 GBP
$4,479 USD
View
A
Retailer 3
-
£3,359 GBP
$4,508 USD
View
A
Retailer 4
-
£3,517 GBP
$4,720 USD
View
A
Retailer 5
-
£3,556 GBP
$4,771 USD
View
A
Retailer 6
-
£3,559 GBP
$4,776 USD
View
Final sale: no returns
A
Retailer 7
-
£3,729 GBP
A$7,698 AUD
View
A
Retailer 8
-
£3,786 GBP
$5,080 USD
View
B+
Retailer 9
-
£4,153 GBP
View
B+
Retailer 10
-
£4,354 GBP
A$8,988 AUD
View
Retailer 11
-
£6,605 GBP
$8,864 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
£6,770 GBP
View
Most Expensive
NZ Jewellers
f6044c73-f30b-4912-8c54-0aee6f2133d8 · Sep 25
£7,702 GBP
$10,335 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from £3,186 GBPSave up to £3,585 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
£3,186 GBP