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Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 5241023174

Certificate GIA 5241023174

Diamond specifications and retailer prices

From €11,879 EUR
£10,491 GBP
As of October 28, 2026
Save €1,096 EUR (8%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €18,482 EUR at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241023174. Listed at 10 retailers as of October 27, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.91°
Pavilion angle38.78°
OriginNatural
Grading LabGIA
CertificateGIA 5241023174
Dimensions11.66 × 5.99 × 3.87 mm
L/W Ratio1.95
Culet sizeNone
Top View
11.66 mm5.99 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5241023174
Side View
Table 59.0%Crown 39.91°Girdle: STK-VTKPavilion 38.78°Culet: NoneDepth 64.6%

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: €11,879 EUR|Low: €7,222 EUR|High: €17,528 EUR|Avg: €12,081 EUR|+20.7%
Retailer 1
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
Retailer 17
Retailer 18
October 28, 2026
Retailer 8€7,222 EUR
Retailer 5€8,914 EUR
Retailer 4€9,449 EUR
Retailer 2€10,040 EUR
Retailer 13€10,464 EUR
Retailer 10€10,660 EUR
Retailer 6€11,441 EUR
Retailer 1€11,879 EUR
Retailer 16€11,991 EUR
Retailer 11€12,081 EUR
Retailer 3€12,874 EUR
Retailer 18€12,874 EUR
Retailer 12€12,975 EUR
Retailer 17€13,302 EUR
Retailer 14€13,457 EUR
Retailer 9€14,539 EUR
Retailer 7€16,181 EUR
Retailer 15€17,528 EUR

15 data points across 18 retailers

10 retailers€11,879 EUR to €12,975 EUR

Retailer 1
-
€10,040 EUR
$11,261 USD
Price last confirmed 7 days ago
Retailer 2
-
€10,464 EUR
CA$16,300 CAD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
€11,879 EUR
£10,491 GBP
View
Retailer 4
-
€11,991 EUR
$13,449 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
€12,081 EUR
$13,550 USD
View
B
Retailer 6
-
€12,874 EUR
$14,440 USD
View
B
Retailer 7
-
€12,975 EUR
$14,553 USD
View
Retailer 8
-
€13,457 EUR
View
Price last confirmed 7 days ago
Retailer 9
-
€17,528 EUR
£15,480 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
7e516e3a-1d12-4631-bed3-9b2956fe97bc · Oct 3
€18,482 EUR
$20,730 USD
View
Price last confirmed 30 days ago
9 more retailers have this diamond
Prices start from €11,879 EURSave up to €1,096 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
€11,879 EUR