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Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 2546768051

Certificate GIA 2546768051

Diamond specifications and retailer prices

From £8,977 GBP
$12,047 USD
As of October 31, 2026
Save £787 GBP (8%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £9,764 GBP at GemTrove · As of November 3, 2026
View at GemTrove

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2546768051. Listed at 4 retailers as of October 31, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.59°
Pavilion angle41.49°
OriginNatural
Grading LabGIA
CertificateGIA 2546768051
Dimensions11.43 × 6.17 × 4.05 mm
L/W Ratio1.85
Top View
11.43 mm6.17 mm1.70 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546768051
Side View
Table 58.0%Crown 40.59°Girdle: MED-VTKPavilion 41.49°Culet: NoneDepth 65.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £9,764 GBP|Low: £5,493 GBP|High: £11,792 GBP|Avg: £8,557 GBP
GemTrove
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
October 10, 2026
Retailer 3£5,493 GBP
Retailer 13£7,006 GBP
Retailer 8£7,474 GBP
Retailer 14£7,921 GBP
Retailer 11£8,066 GBP
Retailer 9£8,098 GBP
Retailer 7£8,186 GBP
Retailer 12£8,206 GBP
Retailer 2£8,977 GBP
Retailer 10£9,288 GBP
Retailer 4£9,369 GBP
GemTrove£9,764 GBP
Retailer 6£10,441 GBP
Retailer 5£11,792 GBP

4 data points across 14 retailers

4 retailers£8,977 GBP to £9,764 GBP

Retailer 1
-
£7,474 GBP
$10,030 USD
Price last confirmed 10 days ago
Retailer 2
-
£8,098 GBP
$10,866 USD
View
Price last confirmed 12 days ago
B
Retailer 3
-
£8,977 GBP
$12,047 USD
View
Most Expensive
B
GemTrove
GT-N-00924875-98 · Nov 3
£9,764 GBP
A$20,158 AUD
View
3 more retailers have this diamond
Prices start from £8,977 GBPSave up to £787 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
£8,977 GBP