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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6512913754

Certificate GIA 6512913754

Diamond specifications and retailer prices

From $11,096 NZD
As of November 5, 2026
Save $8,760 NZD (44%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $23,956 NZD at NZ Jewellers · As of September 30, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6512913754. Listed at 28 retailers as of November 5, 2026, with a 79% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.83°
Pavilion angle30.31°
OriginNatural
Grading LabGIA
CertificateGIA 6512913754
Dimensions7.63 × 5.86 × 4.01 mm
L/W Ratio1.30
Top View
7.63 mm5.86 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512913754
Side View
Table 67.0%Crown 44.83°Girdle: THK-VTKPavilion 30.31°Culet: NoneDepth 68.3%

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 5
Current: $15,212 NZD|Low: $9,445 NZD|High: $20,200 NZD|Avg: $14,212 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 17$11,334 NZD
Retailer 6$11,475 NZD
Retailer 9$11,978 NZD
Retailer 13$12,721 NZD
Retailer 8$13,223 NZD
Retailer 12$13,372 NZD
Retailer 2$13,416 NZD
Retailer 10$13,769 NZD
Retailer 7$13,811 NZD
Retailer 3$14,106 NZD
Retailer 5$14,106 NZD
Retailer 16$14,440 NZD
Retailer 4$14,576 NZD
Retailer 14$14,754 NZD
Retailer 1$15,212 NZD
Retailer 15$17,474 NZD
Retailer 11$19,856 NZD

37 data points across 17 retailers

28 retailers$11,096 NZD to $19,856 NZD

A
Cheapest Retailer
-
$11,096 NZD
A
Retailer 2
-
$11,126 NZD
View
B+
Retailer 3
-
$11,316 NZD
View
A
Retailer 4
-
$11,334 NZD
View
B+
Retailer 5
-
$11,475 NZD
View
B+
Retailer 6
-
$11,978 NZD
View
Final sale: no returns
B+
Retailer 7
-
$12,005 NZD
View
B+
Retailer 8
-
$12,721 NZD
View
B+
Retailer 9
-
$12,752 NZD
View
Retailer 10
-
$12,977 NZD
View
Price last confirmed 40 days ago
B+
Retailer 11
-
$13,141 NZD
View
Retailer 12
-
$13,170 NZD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$13,223 NZD
View
B+
Retailer 14
-
$13,372 NZD
View
B+
Retailer 15
-
$13,416 NZD
View
Retailer 16
-
$13,769 NZD
View
Retailer 17
-
$13,811 NZD
View
Price last confirmed 16 days ago
B+
Retailer 18
-
$14,106 NZD
View
B+
Retailer 19
-
$14,106 NZD
View
B
Retailer 20
-
$14,440 NZD
View
B
Retailer 21
-
$14,516 NZD
View
B
Retailer 22
-
$14,576 NZD
View
B+
Retailer 23
-
$14,754 NZD
View
Retailer 24
-
$14,972 NZD
View
Price last confirmed 39 days ago
Retailer 25
-
$15,212 NZD
View
B
Retailer 26
-
$17,474 NZD
View
B
Retailer 27
-
$19,856 NZD
View
Most Expensive
NZ Jewellers
c49dc6d8-e438-456d-8d9d-4016756cf5bb · Sep 30
$23,956 NZD
$13,280 USD
View
Price last confirmed 37 days ago
27 more retailers have this diamond
Prices start from $11,096 NZDSave up to $8,760 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
$11,096 NZD