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Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 2554796017

Certificate GIA 2554796017

Diamond specifications and retailer prices

From £9,140 GBP
$12,265 USD
As of October 28, 2026
Save £2,386 GBP (21%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £11,526 GBP at Aurelinne · As of October 27, 2026
View at Aurelinne

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 2554796017. Listed at 13 retailers as of October 27, 2026, with prices from £9,140 to £11,526, a £2,386 spread on the same certified stone. Aurelinne lists it at £11,526. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554796017
Dimensions11.74 × 5.99 × 3.71 mm
L/W Ratio1.96
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Indented Natural
Top View
11.74 mm5.99 mm1.70 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554796017
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.9%

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: Oct 28
Current: £11,526 GBP|Low: £6,906 GBP|High: £11,526 GBP|Avg: £9,031 GBP
Aurelinne
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
Retailer 16
November 2, 2026
Retailer 7£6,906 GBP
Retailer 8£6,982 GBP
Retailer 5£7,178 GBP
Retailer 6£7,573 GBP
Retailer 9£9,140 GBP
Retailer 11£9,478 GBP
Retailer 12£9,506 GBP
Retailer 4£9,654 GBP
Retailer 3£10,135 GBP
Retailer 16£10,135 GBP
Retailer 10£10,245 GBP
Retailer 2£10,330 GBP
Retailer 15£10,470 GBP
Retailer 13£10,928 GBP
Retailer 14£11,099 GBP
Aurelinne£11,526 GBP

11 data points across 16 retailers

13 retailers£9,140 GBP to £11,526 GBP

Retailer 1
-
£6,906 GBP
HK$72,400 HKD
Price last confirmed 61 days ago
B
Retailer 2
-
£9,140 GBP
$12,265 USD
View
B
Retailer 3
-
£9,478 GBP
$12,719 USD
View
B
Retailer 4
-
£9,506 GBP
$12,756 USD
View
B+
Retailer 5
-
£9,654 GBP
$12,955 USD
View
B
Retailer 6
-
£10,135 GBP
$13,600 USD
View
B
Retailer 7
-
£10,135 GBP
$13,600 USD
View
B
Retailer 8
-
£10,245 GBP
$13,748 USD
View
B
Retailer 9
-
£10,330 GBP
€13,202 EUR
View
B
Retailer 10
-
£10,470 GBP
$14,050 USD
View
B
Retailer 11
-
£10,928 GBP
$14,665 USD
View
B
Retailer 12
-
£11,099 GBP
$14,894 USD
View
Most Expensive
B
Aurelinne
0a6d86e3-0ddc-46ae-ba1c-2644c68f390d · Oct 27
£11,526 GBP
$15,467 USD
View
12 more retailers have this diamond
Prices start from £9,140 GBPSave up to £2,386 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
£9,140 GBP