CaratHunter
Plans
Heart|Natural|GIA

1.70ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 7398568859

Certificate GIA 7398568859

Diamond specifications and retailer prices

From £4,242 GBP
HK$44,400 HKD
As of November 1, 2026
Save £5,408 GBP (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £9,649 GBP at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7398568859. Listed at 17 retailers as of October 30, 2026, with prices from £4,242 to £9,649, a £5,408 spread on the same certified stone. NZ Jewellers lists it at £9,649. 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

1.70
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7398568859
Dimensions6.80 × 7.89 × 4.98 mm
L/W Ratio1.16
Top View
6.80 mm7.89 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7398568859
Side View
Table 59.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £5,590 GBP|Low: £4,039 GBP|High: £8,137 GBP|Avg: £5,484 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£4,242 GBP
Retailer 8£4,253 GBP
Retailer 5£4,558 GBP
Retailer 6£4,824 GBP
Retailer 7£5,307 GBP
Retailer 3£5,394 GBP
Retailer 1£5,590 GBP
Retailer 2£8,041 GBP

43 data points across 8 retailers

17 retailers£4,242 GBP to £9,649 GBP

B+
Cheapest Retailer
-
£4,242 GBP
HK$44,400 HKD
B+
Retailer 2
-
£4,253 GBP
$5,699 USD
View
B+
Retailer 3
-
£4,558 GBP
$6,107 USD
View
B
Retailer 4
-
£4,824 GBP
$6,464 USD
View
Final sale: no returns
B
Retailer 5
-
£4,825 GBP
$6,465 USD
View
B
Retailer 6
-
£4,865 GBP
$6,519 USD
View
B+
Retailer 7
-
£5,227 GBP
$7,003 USD
View
B
Retailer 8
-
£5,307 GBP
$7,111 USD
View
B+
Retailer 9
-
£5,394 GBP
View
B+
Retailer 10
-
£5,590 GBP
View
B
Retailer 11
-
£5,792 GBP
$7,760 USD
View
B
Retailer 12
-
£5,792 GBP
$7,760 USD
View
B
Retailer 13
-
£5,986 GBP
$8,020 USD
View
B
Retailer 14
-
£6,031 GBP
$8,081 USD
View
Retailer 15
-
£6,356 GBP
$8,517 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
£8,041 GBP
View
Most Expensive
B
NZ Jewellers
ffdbe4e3-a6ae-4a03-9e9f-b1b92395c467 · Oct 30
£9,649 GBP
$12,929 USD
View
16 more retailers have this diamond
Prices start from £4,242 GBPSave up to £5,408 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.

B+
1.70ct Heart
£4,242 GBP