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Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2556223740

Certificate GIA 2556223740

Diamond specifications and retailer prices

From £7,867 GBP
$10,557 USD
As of November 1, 2026
Save £6,265 GBP (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £14,132 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556223740. Listed at 12 retailers as of November 1, 2026, with prices from £7,867 to £14,132, a £6,265 spread on the same certified stone. NZ Jewellers lists it at £14,132. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556223740
Dimensions11.27 × 6.22 × 3.97 mm
L/W Ratio1.81
Top View
11.27 mm6.22 mm1.70 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556223740
Side View
Table 60.0%CrownGirdlePavilionCulet: NDepth 63.8%

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: £9,553 GBP|Low: £7,772 GBP|High: £13,402 GBP|Avg: £9,976 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6£7,867 GBP
Retailer 5£8,478 GBP
Retailer 7£8,550 GBP
Retailer 4£9,094 GBP
Retailer 8£9,327 GBP
Retailer 1£9,553 GBP
Retailer 9£10,599 GBP
Retailer 2£10,680 GBP
Retailer 3£13,242 GBP

41 data points across 9 retailers

12 retailers£7,867 GBP to £14,132 GBP

B+
Cheapest Retailer
-
£7,867 GBP
$10,557 USD
B+
Retailer 2
-
£8,478 GBP
$11,377 USD
View
Final sale: no returns
B+
Retailer 3
-
£8,479 GBP
$11,378 USD
View
B+
Retailer 4
-
£8,550 GBP
$11,473 USD
View
B+
Retailer 5
-
£9,094 GBP
View
B
Retailer 6
-
£9,185 GBP
$12,326 USD
View
B
Retailer 7
-
£9,327 GBP
$12,516 USD
View
B+
Retailer 8
-
£9,553 GBP
View
B
Retailer 9
-
£10,599 GBP
$14,223 USD
View
B
Retailer 10
-
£10,680 GBP
€13,650 EUR
View
B
Retailer 11
-
£13,242 GBP
View
Most Expensive
B
NZ Jewellers
f06bab0f-8ec7-407a-bdd4-1c9393d8ce34 · Nov 3
£14,132 GBP
$18,964 USD
View
11 more retailers have this diamond
Prices start from £7,867 GBPSave up to £6,265 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 Marquise
£7,867 GBP