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Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2556520738

Certificate GIA 2556520738

Diamond specifications and retailer prices

From $9,929 NZD
$5,596 USD
As of October 31, 2026
Save $9,395 NZD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $22,287 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556520738. Listed at 18 retailers as of October 26, 2026, with a 95% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2556520738
Dimensions7.71 × 7.75 × 4.69 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Pinpoint, Natural
Top View
7.71 mm7.75 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2556520738
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $12,257 NZD|Low: $8,783 NZD|High: $19,324 NZD|Avg: $13,061 NZD|-0.7%
Retailer 1
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
November 2, 2026
Retailer 9$9,929 NZD
Retailer 12$10,051 NZD
Retailer 13$10,341 NZD
Retailer 2$10,352 NZD
Retailer 14$10,481 NZD
Retailer 10$10,732 NZD
Retailer 11$10,944 NZD
Retailer 5$11,143 NZD
Retailer 1$12,257 NZD
Retailer 3$12,293 NZD
Retailer 4$12,298 NZD
Retailer 8$13,952 NZD
Retailer 7$18,241 NZD
Retailer 6$19,324 NZD

38 data points across 14 retailers

18 retailers$9,929 NZD to $19,324 NZD

A
Cheapest Retailer
-
$9,929 NZD
$5,596 USD
A
Retailer 2
-
$10,051 NZD
$5,665 USD
View
A
Retailer 3
-
$10,341 NZD
$5,828 USD
View
A
Retailer 4
-
$10,352 NZD
$5,834 USD
View
A
Retailer 5
-
$10,481 NZD
$5,907 USD
View
A
Retailer 6
-
$10,732 NZD
A$9,306 AUD
View
B+
Retailer 7
-
$10,944 NZD
$6,168 USD
View
Final sale: no returns
Retailer 8
-
$12,072 NZD
$6,804 USD
View
Price last confirmed 31 days ago
Retailer 9
-
$12,257 NZD
$6,908 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$12,257 NZD
£5,440 GBP
View
Retailer 11
-
$12,260 NZD
$6,910 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$12,293 NZD
$6,928 USD
View
B+
Retailer 13
-
$12,298 NZD
$6,931 USD
View
Retailer 14
-
$13,930 NZD
$7,851 USD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$13,952 NZD
€7,489 EUR
View
B
Retailer 16
-
$18,241 NZD
£8,095 GBP
View
B
Retailer 17
-
$19,324 NZD
$10,891 USD
View
Most Expensive
NZ Jewellers
0e9bb4a0-df40-447b-bf38-7b3545a180d1 · Sep 28
$22,287 NZD
$12,561 USD
View
Price last confirmed 35 days ago
17 more retailers have this diamond
Prices start from $9,929 NZDSave up to $9,395 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.

A
1.70ct Round
$9,929 NZD