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Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 7551635158

Certificate GIA 7551635158

Diamond specifications and retailer prices

From $26,511 NZD
A$22,948 AUD
As of November 3, 2026
Save $7,004 NZD (21%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $34,286 NZD at NZ Jewellers · As of October 9, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7551635158. Listed at 8 retailers as of November 2, 2026, with a 26% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551635158
Dimensions11.55 × 6.09 × 3.97 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
11.55 mm6.09 mm1.70 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551635158
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.2%

Caratlytics Score

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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: Nov 3
Current: $34,286 NZD|Low: $19,361 NZD|High: $38,203 NZD|Avg: $26,589 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
November 3, 2026
Retailer 26$19,362 NZD
Retailer 7$21,450 NZD
Retailer 5$22,184 NZD
Retailer 4$22,454 NZD
Retailer 14$22,504 NZD
Retailer 11$22,653 NZD
Retailer 8$23,145 NZD
Retailer 12$23,771 NZD
Retailer 10$25,838 NZD
Retailer 9$26,511 NZD
Retailer 17$26,526 NZD
Retailer 16$26,543 NZD
Retailer 21$26,638 NZD
Retailer 23$26,722 NZD
Retailer 25$27,226 NZD
Retailer 18$27,566 NZD
Retailer 19$27,566 NZD
Retailer 6$27,596 NZD
Retailer 15$28,365 NZD
Retailer 24$28,490 NZD
Retailer 2$28,700 NZD
Retailer 22$28,964 NZD
Retailer 13$33,154 NZD
Retailer 20$33,515 NZD
NZ Jewellers$34,286 NZD
Retailer 3$38,203 NZD

17 data points across 26 retailers

8 retailers$26,511 NZD to $33,515 NZD

B
Cheapest Retailer
-
$26,511 NZD
A$22,948 AUD
Retailer 2
-
$27,226 NZD
$15,319 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$27,596 NZD
$15,527 USD
View
Price last confirmed 24 days ago
B
Retailer 4
-
$28,700 NZD
$16,148 USD
View
Retailer 5
-
$28,964 NZD
$16,297 USD
View
Price last confirmed 24 days ago
B
Retailer 6
-
$33,154 NZD
€17,766 EUR
View
B
Retailer 7
-
$33,515 NZD
$18,857 USD
View
Most Expensive
NZ Jewellers
226bdddd-29fa-4ebe-9711-30ce70275206 · Oct 9
$34,286 NZD
$19,291 USD
View
Price last confirmed 24 days ago
7 more retailers have this diamond
Prices start from $26,511 NZDSave up to $7,004 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
$26,511 NZD