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Marquise|Natural|GIA

1.70ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 3555196465

Certificate GIA 3555196465

Diamond specifications and retailer prices

From £9,014 GBP
CA$16,775 CAD
As of October 30, 2026
Save £2,010 GBP (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £11,025 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3555196465. Listed at 3 retailers as of October 30, 2026, with prices from £9,014 to £11,025, a £2,010 spread on the same certified stone. 77 Diamonds lists it at £11,025. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.94°
Pavilion angle40.01°
OriginNatural
Grading LabGIA
CertificateGIA 3555196465
Dimensions11.09 × 6.09 × 4.07 mm
L/W Ratio1.82
Top View
11.09 mm6.09 mm1.70 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555196465
Side View
Table 55.0%Crown 41.94°Girdle: MED-ETKPavilion 40.01°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £11,025 GBP|Low: £5,917 GBP|High: £13,148 GBP|Avg: £9,026 GBP|-0.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9£5,917 GBP
Retailer 7£7,249 GBP
Retailer 4£7,608 GBP
Retailer 5£8,014 GBP
Retailer 3£8,716 GBP
Retailer 2£9,014 GBP
Retailer 8£9,348 GBP
Retailer 6£10,147 GBP
77 Diamonds£11,025 GBP
Retailer 10£13,148 GBP

33 data points across 10 retailers

3 retailers£9,014 GBP to £11,025 GBP

B
Cheapest Retailer
-
£9,014 GBP
CA$16,775 CAD
B
Retailer 2
-
£9,084 GBP
A$18,726 AUD
View
Most Expensive
B
77 Diamonds
MQMBJJQM2UFT · Nov 1
£11,025 GBP
View
2 more retailers have this diamond
Prices start from £9,014 GBPSave up to £2,010 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
£9,014 GBP