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Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2556223740

Certificate GIA 2556223740

Diamond specifications and retailer prices

From $15,064 AUD
$10,557 USD
As of November 1, 2026
Save $11,996 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $27,060 AUD at NZ Jewellers · As of November 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556223740. Listed at 12 retailers as of November 1, 2026, with prices from $15,064 to $27,060, a $11,996 spread on the same certified stone. NZ Jewellers lists it at $27,060. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556223740
Dimensions11.27 × 6.22 × 3.97 mm
L/W Ratio1.81
Top View
11.27 mm6.22 mm1.70 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556223740
Side View
Table 60.0%CrownGirdlePavilionCulet: NDepth 63.8%

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 1
Current: $18,293 AUD|Low: $14,883 AUD|High: $25,662 AUD|Avg: $19,103 AUD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$15,064 AUD
Retailer 5$16,234 AUD
Retailer 7$16,371 AUD
Retailer 4$17,414 AUD
Retailer 8$17,859 AUD
Retailer 1$18,293 AUD
Retailer 9$20,295 AUD
Retailer 2$20,451 AUD
Retailer 3$25,356 AUD

41 data points across 9 retailers

12 retailers$15,064 AUD to $27,060 AUD

B+
Cheapest Retailer
-
$15,064 AUD
$10,557 USD
B+
Retailer 2
-
$16,234 AUD
$11,377 USD
View
Final sale: no returns
B+
Retailer 3
-
$16,235 AUD
$11,378 USD
View
B+
Retailer 4
-
$16,371 AUD
$11,473 USD
View
B+
Retailer 5
-
$17,414 AUD
£9,610 GBP
View
B
Retailer 6
-
$17,588 AUD
$12,326 USD
View
B
Retailer 7
-
$17,859 AUD
$12,516 USD
View
B+
Retailer 8
-
$18,293 AUD
£10,094 GBP
View
B
Retailer 9
-
$20,295 AUD
$14,223 USD
View
B
Retailer 10
-
$20,451 AUD
€13,650 EUR
View
B
Retailer 11
-
$25,356 AUD
£13,992 GBP
View
Most Expensive
B
NZ Jewellers
f06bab0f-8ec7-407a-bdd4-1c9393d8ce34 · Nov 3
$27,060 AUD
$18,964 USD
View
11 more retailers have this diamond
Prices start from $15,064 AUDSave up to $11,996 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
$15,064 AUD