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Marquise|Natural|GIA

1.70ct M SI2 Marquise Natural Diamond

VG • M/SI2 • GIA 1559568817

Certificate GIA 1559568817

Diamond specifications and retailer prices

From £2,210 GBP
As of November 4, 2026
Save £1,484 GBP (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,694 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559568817. Listed at 7 retailers as of November 4, 2026, with prices from £2,210 to £3,694, a £1,484 spread on the same certified stone. Wholesale Diamonds Direct lists it at £3,694. 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
M
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.29°
Pavilion angle40.57°
OriginNatural
Grading LabGIA
CertificateGIA 1559568817
Dimensions11.21 × 6.05 × 3.97 mm
L/W Ratio1.85
Culet sizeNone
Top View
11.21 mm6.05 mm1.70 ctM / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559568817
Side View
Table 59.0%Crown 40.29°Girdle: MED-VTKPavilion 40.57°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £2,844 GBP|Low: £1,777 GBP|High: £4,074 GBP|Avg: £2,733 GBP|-9.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 6, 2026
Retailer 7£1,777 GBP
Retailer 4£2,210 GBP
Retailer 3£2,215 GBP
Retailer 5£2,701 GBP
Retailer 2£2,725 GBP
Retailer 6£2,753 GBP
Retailer 1£2,844 GBP
Wholesale Diamonds Direct£3,694 GBP

39 data points across 8 retailers

7 retailers£2,210 GBP to £3,694 GBP

A
Cheapest Retailer
-
£2,210 GBP
A
Retailer 2
-
£2,215 GBP
View
B+
Retailer 3
-
£2,701 GBP
View
B+
Retailer 4
-
£2,725 GBP
View
B+
Retailer 5
-
£2,753 GBP
View
B+
Retailer 6
-
£2,844 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
387037349 · Nov 6
£3,694 GBP
$4,944 USD
View
6 more retailers have this diamond
Prices start from £2,210 GBPSave up to £1,484 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 Marquise
£2,210 GBP