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Round|Natural|GIA

1.70ct F I1 Round Natural Diamond

EX • F/I1 • GIA 6421762881

Certificate GIA 6421762881

Diamond specifications and retailer prices

From £3,672 GBP
HK$38,500 HKD
As of November 1, 2026
Save £1,770 GBP (33%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £5,443 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6421762881. Listed at 5 retailers as of November 1, 2026, with prices from £3,672 to £5,443, a £1,770 spread on the same certified stone. Yorxs lists it at £5,443. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
F
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6421762881
Dimensions7.55 × 7.59 × 4.76 mm
L/W Ratio1.01
Top View
7.55 mm7.59 mm1.70 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421762881
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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 1
Current: £3,672 GBP|Low: £3,634 GBP|High: £6,154 GBP|Avg: £4,922 GBP|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 2, 2026
Retailer 1£3,672 GBP
Retailer 3£4,360 GBP
Retailer 2£4,417 GBP
Retailer 4£5,028 GBP
Retailer 6£5,352 GBP
Yorxs£5,443 GBP
Retailer 5£6,154 GBP

21 data points across 7 retailers

5 retailers£3,672 GBP to £5,443 GBP

A
Cheapest Retailer
-
£3,672 GBP
HK$38,500 HKD
B+
Retailer 2
-
£4,360 GBP
$5,851 USD
View
B+
Retailer 3
-
£4,417 GBP
$5,927 USD
View
B
Retailer 4
-
£5,028 GBP
$6,747 USD
View
Most Expensive
B
Yorxs
1EB1BA5FB · Nov 2
£5,443 GBP
€6,956 EUR
View
4 more retailers have this diamond
Prices start from £3,672 GBPSave up to £1,770 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 Round
£3,672 GBP