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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 $18,763 NZD
$10,557 USD
As of November 1, 2026
Save $14,942 NZD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $33,705 NZD 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 $18,763 to $33,705, a $14,942 spread on the same certified stone. NZ Jewellers lists it at $33,705. 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: $22,785 NZD|Low: $18,537 NZD|High: $31,964 NZD|Avg: $23,793 NZD|-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$18,763 NZD
Retailer 5$20,220 NZD
Retailer 7$20,391 NZD
Retailer 4$21,690 NZD
Retailer 8$22,245 NZD
Retailer 1$22,785 NZD
Retailer 9$25,279 NZD
Retailer 2$25,473 NZD
Retailer 3$31,582 NZD

41 data points across 9 retailers

12 retailers$18,763 NZD to $33,705 NZD

B+
Cheapest Retailer
-
$18,763 NZD
$10,557 USD
B+
Retailer 2
-
$20,220 NZD
$11,377 USD
View
Final sale: no returns
B+
Retailer 3
-
$20,222 NZD
$11,378 USD
View
B+
Retailer 4
-
$20,391 NZD
$11,473 USD
View
B+
Retailer 5
-
$21,690 NZD
£9,610 GBP
View
B
Retailer 6
-
$21,907 NZD
$12,326 USD
View
B
Retailer 7
-
$22,245 NZD
$12,516 USD
View
B+
Retailer 8
-
$22,785 NZD
£10,094 GBP
View
B
Retailer 9
-
$25,279 NZD
$14,223 USD
View
B
Retailer 10
-
$25,473 NZD
€13,650 EUR
View
B
Retailer 11
-
$31,582 NZD
£13,992 GBP
View
Most Expensive
B
NZ Jewellers
f06bab0f-8ec7-407a-bdd4-1c9393d8ce34 · Nov 3
$33,705 NZD
$18,964 USD
View
11 more retailers have this diamond
Prices start from $18,763 NZDSave up to $14,942 NZD

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
$18,763 NZD