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Princess|Natural|GIA

1.70ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 2456857650

Certificate GIA 2456857650

Diamond specifications and retailer prices

From £3,539 GBP
A$7,306 AUD
As of November 2, 2026
Save £2,789 GBP (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,874 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.7ct natural princess diamond

This 1.7ct natural princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2456857650. Listed at 17 retailers as of November 1, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2456857650
Dimensions6.46 × 6.31 × 4.69 mm
L/W Ratio1.02
Star length50%
Top View
6.46 mm6.31 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2456857650
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 74.3%

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 2
Current: £4,190 GBP|Low: £3,412 GBP|High: £7,817 GBP|Avg: £5,023 GBP|-7.2%
Retailer 1
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
Retailer 15
November 3, 2026
Retailer 2£3,746 GBP
Retailer 5£3,809 GBP
Retailer 4£3,964 GBP
Retailer 13£4,013 GBP
Retailer 9£4,018 GBP
Retailer 1£4,190 GBP
Retailer 8£4,295 GBP
Retailer 15£4,318 GBP
Retailer 14£4,460 GBP
Retailer 10£4,692 GBP
Retailer 12£5,277 GBP
Retailer 6£5,381 GBP
Retailer 7£5,685 GBP
Retailer 11£6,328 GBP
Retailer 3£7,708 GBP

12 data points across 15 retailers

17 retailers£3,539 GBP to £6,328 GBP

A
Cheapest Retailer
-
£3,539 GBP
A$7,306 AUD
A
Retailer 2
-
£3,746 GBP
$5,027 USD
View
A
Retailer 3
-
£3,809 GBP
$5,112 USD
View
A
Retailer 4
-
£3,964 GBP
$5,320 USD
View
Final sale: no returns
A
Retailer 5
-
£4,013 GBP
$5,385 USD
View
A
Retailer 6
-
£4,018 GBP
View
A
Retailer 7
-
£4,190 GBP
View
A
Retailer 8
-
£4,295 GBP
$5,763 USD
View
Retailer 9
-
£4,318 GBP
A$8,914 AUD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
£4,460 GBP
$5,985 USD
View
B+
Retailer 11
-
£4,692 GBP
€5,996 EUR
View
Retailer 12
-
£4,708 GBP
$6,318 USD
View
Price last confirmed 44 days ago
B+
Retailer 13
-
£5,277 GBP
ZAR 114,393 ZAR
View
Retailer 14
-
£5,432 GBP
$7,290 USD
View
Price last confirmed 45 days ago
B+
Retailer 15
-
£6,328 GBP
View
Retailer 16
-
£7,708 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
d021233d-e81c-41d6-8154-cf70d66f75b6 · Sep 20
£7,874 GBP
$10,567 USD
View
Price last confirmed 43 days ago
16 more retailers have this diamond
Prices start from £3,539 GBPSave up to £2,789 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 Princess
£3,539 GBP