CaratHunter
Plans
Heart|Natural|GIA

1.70ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 7496344566

Certificate GIA 7496344566

Diamond specifications and retailer prices

From £4,704 GBP
$6,313 USD
As of November 1, 2026
Save £5,254 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £9,959 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7496344566. Listed at 16 retailers as of October 30, 2026, with prices from £4,704 to £9,959, a £5,254 spread on the same certified stone. NZ Jewellers lists it at £9,959. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7496344566
Dimensions7.40 × 8.26 × 4.61 mm
L/W Ratio1.12
Cert comments
Additional twinning wisps, pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
7.40 mm8.26 mm1.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7496344566
Side View
Table 54.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.8%

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: £9,959 GBP|Low: £4,681 GBP|High: £9,959 GBP|Avg: £6,127 GBP
NZ Jewellers
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
November 2, 2026
Retailer 6£4,681 GBP
Retailer 10£4,704 GBP
Retailer 13£4,979 GBP
Retailer 12£4,989 GBP
Retailer 4£5,021 GBP
Retailer 14£5,394 GBP
Retailer 11£5,477 GBP
Retailer 2£5,615 GBP
Retailer 9£5,743 GBP
Retailer 3£6,225 GBP
Retailer 5£6,559 GBP
Retailer 8£7,315 GBP
Retailer 7£8,298 GBP
NZ Jewellers£9,959 GBP

45 data points across 14 retailers

16 retailers£4,704 GBP to £9,959 GBP

B+
Cheapest Retailer
-
£4,704 GBP
$6,313 USD
B+
Retailer 2
-
£4,979 GBP
$6,682 USD
View
B+
Retailer 3
-
£4,989 GBP
$6,695 USD
View
B+
Retailer 4
-
£5,021 GBP
$6,738 USD
View
B+
Retailer 5
-
£5,394 GBP
$7,239 USD
View
B+
Retailer 6
-
£5,477 GBP
$7,350 USD
View
B+
Retailer 7
-
£5,615 GBP
View
Retailer 8
-
£5,743 GBP
A$11,856 AUD
View
Price last confirmed 11 days ago
B
Retailer 9
-
£5,962 GBP
$8,000 USD
View
B
Retailer 10
-
£5,962 GBP
$8,000 USD
View
B
Retailer 11
-
£6,163 GBP
$8,270 USD
View
B
Retailer 12
-
£6,225 GBP
$8,353 USD
View
Retailer 13
-
£6,559 GBP
$8,802 USD
View
Price last confirmed 10 days ago
B
Retailer 14
-
£7,315 GBP
ZAR 158,585 ZAR
View
B
Retailer 15
-
£8,298 GBP
View
Most Expensive
B
NZ Jewellers
ad49f0ae-b3aa-4a2b-ae8a-0485fd158833 · Oct 30
£9,959 GBP
$13,364 USD
View
15 more retailers have this diamond
Prices start from £4,704 GBPSave up to £5,254 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
£4,704 GBP