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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1559192012

Certificate GIA 1559192012

Diamond specifications and retailer prices

From $8,289 NZD
As of November 6, 2026
Save $8,107 NZD (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $19,138 NZD at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559192012. Listed at 21 retailers as of November 1, 2026, with a 98% 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559192012
Dimensions7.92 × 6.10 × 4.25 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle, Extra Facet
Top View
7.92 mm6.10 mm1.70 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559192012
Side View
Table 71.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.7%

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: Nov 6
Current: $11,749 NZD|Low: $8,265 NZD|High: $17,108 NZD|Avg: $11,130 NZD
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
November 7, 2026
Retailer 11$8,289 NZD
Retailer 7$8,754 NZD
Retailer 3$9,517 NZD
Retailer 4$9,768 NZD
Retailer 10$10,154 NZD
Retailer 13$10,215 NZD
Retailer 6$10,511 NZD
Retailer 12$11,348 NZD
Retailer 5$11,372 NZD
Retailer 1$11,749 NZD
Retailer 8$12,021 NZD
Retailer 9$13,502 NZD
Retailer 2$16,396 NZD

28 data points across 13 retailers

21 retailers$8,289 NZD to $16,396 NZD

A
Cheapest Retailer
-
$8,289 NZD
A
Retailer 2
-
$8,754 NZD
View
Retailer 3
-
$9,517 NZD
View
Price last confirmed 11 days ago
B+
Retailer 4
-
$9,768 NZD
View
A
Retailer 5
-
$10,154 NZD
View
A
Retailer 6
-
$10,215 NZD
View
Final sale: no returns
B+
Retailer 7
-
$10,502 NZD
View
B+
Retailer 8
-
$10,508 NZD
View
A
Retailer 9
-
$10,511 NZD
View
B+
Retailer 10
-
$11,312 NZD
View
B+
Retailer 11
-
$11,348 NZD
View
Retailer 12
-
$11,372 NZD
View
Price last confirmed 28 days ago
Retailer 13
-
$11,442 NZD
View
Price last confirmed 26 days ago
Retailer 14
-
$11,442 NZD
View
Price last confirmed 28 days ago
Retailer 15
-
$11,505 NZD
View
Price last confirmed 38 days ago
Retailer 16
-
$11,749 NZD
View
B+
Retailer 17
-
$12,021 NZD
View
Retailer 18
-
$13,203 NZD
View
Price last confirmed 26 days ago
B+
Retailer 19
-
$13,502 NZD
View
B
Retailer 20
-
$16,396 NZD
View
Most Expensive
NZ Jewellers
46cc14e8-b203-4d3a-873b-62a06dc8972d · Oct 11
$19,138 NZD
$10,609 USD
View
Price last confirmed 26 days ago
20 more retailers have this diamond
Prices start from $8,289 NZDSave up to $8,107 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 Radiant
$8,289 NZD