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Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5543427044

Certificate GIA 5543427044

Diamond specifications and retailer prices

From £5,727 GBP
$7,674 USD
As of October 31, 2026
Save £5,037 GBP (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £10,764 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round 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 and certified by GIA 5543427044. Listed at 21 retailers as of October 30, 2026, with prices from £5,727 to £10,764, a £5,037 spread on the same certified stone. NZ Jewellers lists it at £10,764. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5543427044
Dimensions7.55 × 7.61 × 4.74 mm
L/W Ratio1.01
Top View
7.55 mm7.61 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543427044
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: Oct 31
Current: £10,764 GBP|Low: £5,653 GBP|High: £10,764 GBP|Avg: £7,718 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
November 1, 2026
Retailer 9£5,727 GBP
Retailer 7£6,203 GBP
Retailer 3£6,459 GBP
Retailer 11£6,885 GBP
Retailer 10£6,997 GBP
Retailer 6£7,011 GBP
Retailer 8£7,104 GBP
Retailer 2£8,002 GBP
Retailer 12£8,073 GBP
Retailer 4£8,501 GBP
Retailer 5£10,087 GBP
NZ Jewellers£10,764 GBP

42 data points across 12 retailers

21 retailers£5,727 GBP to £10,764 GBP

B+
Cheapest Retailer
-
£5,727 GBP
$7,674 USD
B+
Retailer 2
-
£5,862 GBP
$7,855 USD
View
B+
Retailer 3
-
£6,041 GBP
A$12,453 AUD
View
B+
Retailer 4
-
£6,203 GBP
$8,312 USD
View
Final sale: no returns
B+
Retailer 5
-
£6,228 GBP
$8,345 USD
View
B
Retailer 6
-
£6,304 GBP
CA$11,732 CAD
View
B
Retailer 7
-
£6,885 GBP
$9,225 USD
View
B
Retailer 8
-
£6,997 GBP
$9,375 USD
View
B+
Retailer 9
-
£7,011 GBP
View
B
Retailer 10
-
£7,104 GBP
$9,519 USD
View
B
Retailer 11
-
£7,177 GBP
$9,616 USD
View
B
Retailer 12
-
£7,433 GBP
$9,960 USD
View
B
Retailer 13
-
£7,627 GBP
$10,220 USD
View
B
Retailer 14
-
£7,627 GBP
$10,220 USD
View
B
Retailer 15
-
£7,881 GBP
$10,560 USD
View
B
Retailer 16
-
£8,002 GBP
€10,211 EUR
View
B
Retailer 17
-
£8,073 GBP
$10,817 USD
View
B
Retailer 18
-
£8,252 GBP
$11,057 USD
View
Retailer 19
-
£8,501 GBP
$11,390 USD
View
Price last confirmed 9 days ago
B
Retailer 20
-
£10,087 GBP
View
Most Expensive
B
NZ Jewellers
b5acfbc1-1425-43fb-b114-7514002729f1 · Oct 30
£10,764 GBP
$14,423 USD
View
20 more retailers have this diamond
Prices start from £5,727 GBPSave up to £5,037 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 Round
£5,727 GBP