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Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 3545815336

Certificate GIA 3545815336

Diamond specifications and retailer prices

From $17,138 AUD
CA$16,681 CAD
As of November 2, 2026
Save $9,634 AUD (36%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $26,771 AUD at MOH London · As of November 2, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545815336. Listed at 11 retailers as of November 2, 2026, with prices from $17,138 to $26,771, a $9,634 spread on the same certified stone. MOH London lists it at $26,771. 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.43°
Pavilion angle37.85°
OriginNatural
Grading LabGIA
CertificateGIA 3545815336
Dimensions12.85 × 6.05 × 3.55 mm
L/W Ratio2.12
Top View
12.85 mm6.05 mm1.70 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3545815336
Side View
Table 62.0%Crown 39.43°Girdle: ETN-VTKPavilion 37.85°Culet: NoneDepth 58.7%

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: Nov 2
Current: $26,771 AUD|Low: $11,412 AUD|High: $28,569 AUD|Avg: $18,949 AUD|-0.1%
MOH London
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
November 2, 2026
Retailer 8$11,412 AUD
Retailer 6$14,192 AUD
Retailer 10$15,587 AUD
Retailer 13$17,138 AUD
Retailer 14$17,345 AUD
Retailer 12$17,557 AUD
Retailer 9$18,039 AUD
Retailer 18$18,295 AUD
Retailer 7$18,492 AUD
Retailer 16$18,842 AUD
Retailer 15$19,785 AUD
Retailer 3$19,805 AUD
Retailer 2$20,184 AUD
Retailer 4$20,476 AUD
Retailer 5$20,923 AUD
Retailer 11$21,593 AUD
MOH London$26,771 AUD
Retailer 17$28,569 AUD

15 data points across 18 retailers

11 retailers$17,138 AUD to $26,771 AUD

B+
Cheapest Retailer
-
$17,138 AUD
CA$16,681 CAD
B
Retailer 2
-
$17,345 AUD
$12,156 USD
View
B
Retailer 3
-
$17,557 AUD
$12,304 USD
View
B
Retailer 4
-
$18,039 AUD
$12,642 USD
View
B+
Retailer 5
-
$18,295 AUD
$12,821 USD
View
Retailer 6
-
$18,571 AUD
$13,015 USD
View
Price last confirmed 41 days ago
Retailer 7
-
$19,285 AUD
$13,515 USD
View
Price last confirmed 42 days ago
B
Retailer 8
-
$19,785 AUD
$13,866 USD
View
B
Retailer 9
-
$20,184 AUD
$14,145 USD
View
B
Retailer 10
-
$21,593 AUD
€14,412 EUR
View
Most Expensive
B
MOH London
EC663FC79 · Nov 2
$26,771 AUD
£14,773 GBP
View
10 more retailers have this diamond
Prices start from $17,138 AUDSave up to $9,634 AUD

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
$17,138 AUD