Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 7551808281

Certificate GIA 7551808281

Diamond specifications and retailer prices

From £8,163 GBP
$10,954 USD
As of November 1, 2026
Save £6,500 GBP (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £14,663 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551808281. Listed at 13 retailers as of November 1, 2026, with prices from £8,163 to £14,663, a £6,500 spread on the same certified stone. NZ Jewellers lists it at £14,663. 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
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 7551808281
Dimensions11.03 × 6.13 × 4.00 mm
L/W Ratio1.80
Top View
11.03 mm6.13 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 7551808281
Side View
Table 59.0%CrownGirdlePavilionCuletDepth 65.2%

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: £9,519 GBP|Low: £8,163 GBP|High: £13,905 GBP|Avg: £10,327 GBP|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 9£8,163 GBP
Retailer 10£8,667 GBP
Retailer 2£8,798 GBP
Retailer 1£9,519 GBP
Retailer 7£9,573 GBP
Retailer 8£9,678 GBP
Retailer 3£9,843 GBP
Retailer 4£11,082 GBP
Retailer 6£12,925 GBP
Retailer 5£13,740 GBP

39 data points across 10 retailers

13 retailers£8,163 GBP to £14,663 GBP

B+
Cheapest Retailer
-
£8,163 GBP
$10,954 USD
B+
Retailer 2
-
£8,667 GBP
$11,630 USD
View
B+
Retailer 3
-
£8,798 GBP
$11,806 USD
View
B+
Retailer 4
-
£9,519 GBP
View
B
Retailer 5
-
£9,531 GBP
$12,790 USD
View
Retailer 6
-
£9,573 GBP
A$19,764 AUD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
£9,678 GBP
$12,987 USD
View
B+
Retailer 8
-
£9,843 GBP
View
B
Retailer 9
-
£10,997 GBP
$14,757 USD
View
B
Retailer 10
-
£11,082 GBP
€14,163 EUR
View
B
Retailer 11
-
£12,925 GBP
ZAR 280,200 ZAR
View
B
Retailer 12
-
£13,740 GBP
View
Most Expensive
B
NZ Jewellers
a02cec0a-cb7b-4da6-b633-baf9211396cb · Nov 3
£14,663 GBP
$19,677 USD
View
12 more retailers have this diamond
Prices start from £8,163 GBPSave up to £6,500 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
£8,163 GBP