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Princess|Natural|GIA

1.70ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 1563478550

Certificate GIA 1563478550

Diamond specifications and retailer prices

From £4,162 GBP
$5,585 USD
As of November 1, 2026
Save £1,007 GBP (19%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £5,169 GBP at Blue Nile · As of November 3, 2026
View at Blue Nile

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 1563478550. Listed at 5 retailers as of November 1, 2026, with prices from £4,162 to £5,169, a £1,007 spread on the same certified stone. Blue Nile lists it at £5,169. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563478550
Dimensions6.37 × 6.36 × 4.74 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Knot, Needle, Natural
Top View
6.37 mm6.36 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1563478550
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 74.5%

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: £5,169 GBP|Low: £4,162 GBP|High: £5,169 GBP|Avg: £4,553 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 3£4,162 GBP
Retailer 4£4,253 GBP
Retailer 5£4,414 GBP
Retailer 2£4,621 GBP
Blue Nile£5,169 GBP

26 data points across 5 retailers

5 retailers£4,162 GBP to £5,169 GBP

A
Cheapest Retailer
-
£4,162 GBP
$5,585 USD
A
Retailer 2
-
£4,253 GBP
SGD 7,713 SGD
View
A
Retailer 3
-
£4,414 GBP
$5,923 USD
View
A
Retailer 4
-
£4,621 GBP
View
Most Expensive
B+
Blue Nile
30357710 · Nov 3
£5,169 GBP
$6,936 USD
View
4 more retailers have this diamond
Prices start from £4,162 GBPSave up to £1,007 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
£4,162 GBP