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Round|Natural|GIA

1.70ct F I1 Round Natural Diamond

VG • F/I1 • GIA 1429508705

Certificate GIA 1429508705

Diamond specifications and retailer prices

From £4,113 GBP
$5,520 USD
As of November 1, 2026
Save £1,788 GBP (30%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £9,066 GBP at NZ Jewellers · As of September 28, 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 F colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 1429508705. Listed at 8 retailers as of November 1, 2026, with a 43% 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1429508705
Dimensions7.55 × 7.50 × 4.77 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.55 mm7.50 mm1.70 ctF / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1429508705
Side View
Table 57.0%Crown 36.5°Girdle: ThickPavilion 40.8°Culet: NoneDepth 63.4%

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: £5,901 GBP|Low: £4,113 GBP|High: £6,462 GBP|Avg: £5,037 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£4,113 GBP
Retailer 4£4,229 GBP
Retailer 3£4,283 GBP
Retailer 1£5,901 GBP
Retailer 5£6,462 GBP

22 data points across 5 retailers

8 retailers£4,113 GBP to £5,901 GBP

B+
Cheapest Retailer
-
£4,113 GBP
$5,520 USD
B+
Retailer 2
-
£4,283 GBP
$5,747 USD
View
Retailer 3
-
£4,533 GBP
$6,083 USD
View
Price last confirmed 22 days ago
Retailer 4
-
£4,911 GBP
$6,590 USD
View
Price last confirmed 26 days ago
Retailer 5
-
£4,986 GBP
$6,691 USD
View
Price last confirmed 34 days ago
Retailer 6
-
£5,666 GBP
$7,603 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
£5,901 GBP
€7,542 EUR
View
Most Expensive
NZ Jewellers
62d6057e-16e9-4cc9-af5d-650ae743b257 · Sep 28
£9,066 GBP
$12,166 USD
View
Price last confirmed 36 days ago
7 more retailers have this diamond
Prices start from £4,113 GBPSave up to £1,788 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
£4,113 GBP