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Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1555639716

Certificate GIA 1555639716

Diamond specifications and retailer prices

From €12,090 EUR
$13,560 USD
As of October 29, 2026
Save €6,656 EUR (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €18,745 EUR at MOH London · As of October 29, 2026
View at MOH London

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 1555639716. Listed at 7 retailers as of October 29, 2026, with prices from €12,090 to €18,745, a €6,656 spread on the same certified stone. MOH London lists it at €18,745. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555639716
Dimensions11.72 × 6.26 × 3.85 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizeNone
Top View
11.72 mm6.26 mm1.70 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555639716
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.5%

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 29
Current: €18,745 EUR|Low: €12,090 EUR|High: €18,871 EUR|Avg: €14,948 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 8€12,090 EUR
Retailer 2€12,710 EUR
Retailer 5€12,795 EUR
Retailer 3€13,531 EUR
Retailer 4€15,021 EUR
Retailer 6€16,913 EUR
Retailer 7€17,020 EUR
MOH London€18,745 EUR

38 data points across 8 retailers

7 retailers€12,090 EUR to €18,745 EUR

B+
Cheapest Retailer
-
€12,090 EUR
$13,560 USD
B+
Retailer 2
-
€12,710 EUR
£11,225 GBP
View
B
Retailer 3
-
€12,795 EUR
$14,351 USD
View
B
Retailer 4
-
€13,531 EUR
£11,950 GBP
View
B
Retailer 5
-
€15,021 EUR
View
B
Retailer 6
-
€16,913 EUR
$18,970 USD
View
Most Expensive
B
MOH London
AD75CD469 · Oct 29
€18,745 EUR
£16,555 GBP
View
6 more retailers have this diamond
Prices start from €12,090 EURSave up to €6,656 EUR

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
€12,090 EUR