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Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2558513002

Certificate GIA 2558513002

Diamond specifications and retailer prices

From $11,145 NZD
$6,271 USD
As of November 2, 2026
Save $14,282 NZD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $25,428 NZD at NZ Jewellers · As of October 30, 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 2558513002. Listed at 16 retailers as of October 30, 2026, with prices from $11,145 to $25,428, a $14,282 spread on the same certified stone. NZ Jewellers lists it at $25,428. 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
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558513002
Dimensions7.55 × 7.59 × 4.76 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.55 mm7.59 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558513002
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.9%

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: Nov 2
Current: $25,428 NZD|Low: $10,706 NZD|High: $26,517 NZD|Avg: $15,181 NZD|-4.1%
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 5$11,145 NZD
Retailer 11$11,215 NZD
Retailer 4$11,904 NZD
Retailer 13$12,713 NZD
Retailer 7$12,715 NZD
Retailer 8$13,774 NZD
Retailer 15$13,986 NZD
Retailer 9$14,066 NZD
Retailer 12$15,178 NZD
Retailer 16$15,178 NZD
Retailer 2$15,192 NZD
Retailer 14$15,676 NZD
Retailer 3$15,893 NZD
Retailer 6$16,746 NZD
Retailer 10$21,188 NZD
NZ Jewellers$25,428 NZD

41 data points across 16 retailers

16 retailers$11,145 NZD to $25,428 NZD

A
Cheapest Retailer
-
$11,145 NZD
$6,271 USD
A
Retailer 2
-
$11,215 NZD
HK$49,300 HKD
View
B+
Retailer 3
-
$11,904 NZD
$6,698 USD
View
B+
Retailer 4
-
$12,713 NZD
$7,153 USD
View
Final sale: no returns
B+
Retailer 5
-
$12,715 NZD
$7,154 USD
View
B+
Retailer 6
-
$13,774 NZD
$7,750 USD
View
B+
Retailer 7
-
$13,986 NZD
$7,869 USD
View
B+
Retailer 8
-
$14,066 NZD
£6,232 GBP
View
B
Retailer 9
-
$15,178 NZD
$8,540 USD
View
B
Retailer 10
-
$15,178 NZD
$8,540 USD
View
B+
Retailer 11
-
$15,192 NZD
€8,141 EUR
View
B+
Retailer 12
-
$15,676 NZD
$8,820 USD
View
B+
Retailer 13
-
$15,893 NZD
$8,942 USD
View
Retailer 14
-
$16,746 NZD
$9,422 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$21,188 NZD
£9,387 GBP
View
Most Expensive
B
NZ Jewellers
631e12f0-c64d-4532-8689-4230b95d6466 · Oct 30
$25,428 NZD
$14,307 USD
View
15 more retailers have this diamond
Prices start from $11,145 NZDSave up to $14,282 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
$11,145 NZD