Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

EX • F/SI1

Diamond specifications and retailer prices

From $16,915 CAD
$12,109 USD
As of October 27, 2026
Save $12,042 CAD (42%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $28,958 CAD at NZ Jewellers · As of October 6, 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. Listed at 4 retailers as of October 27, 2026, with a 71% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
Dimensions11.66 × 5.99 × 3.87 mm
L/W Ratio1.95
Top View
11.66 mm5.99 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

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 27
Current: $28,958 CAD|Low: $16,915 CAD|High: $29,938 CAD|Avg: $22,795 CAD|-3.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 27, 2026
Retailer 3$16,915 CAD
Retailer 2$19,294 CAD
Retailer 4$23,374 CAD
NZ Jewellers$28,958 CAD

6 data points across 4 retailers

4 retailers$16,915 CAD to $28,958 CAD

B
Cheapest Retailer
-
$16,915 CAD
$12,109 USD
B
Retailer 2
-
$19,294 CAD
$13,812 USD
View
C
Retailer 3
-
$28,958 CAD
$20,730 USD
View
Most Expensive
NZ Jewellers
de9054bc-7d18-49d9-abd1-3fa5f1bcc9ad · Oct 6
$28,958 CAD
$20,730 USD
View
Price last confirmed 26 days ago
3 more retailers have this diamond
Prices start from $16,915 CADSave up to $12,042 CAD

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
$16,915 CAD