CaratHunter
Plans
Radiant|Natural|GIA

1.70ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 5231988896

Certificate GIA 5231988896

Diamond specifications and retailer prices

From $6,142 NZD
As of November 6, 2026
Save $6,837 NZD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,954 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231988896. Listed at 13 retailers as of November 2, 2026, with a 111% 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231988896
Dimensions8.00 × 5.92 × 4.00 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
8.00 mm5.92 mm1.70 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231988896
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.6%

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: $8,255 NZD|Low: $6,079 NZD|High: $13,695 NZD|Avg: $8,336 NZD|+3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10$6,142 NZD
Retailer 8$6,187 NZD
Retailer 5$6,572 NZD
Retailer 3$6,815 NZD
Retailer 11$6,858 NZD
Retailer 9$7,448 NZD
Retailer 7$7,540 NZD
Retailer 1$8,255 NZD
Retailer 4$9,171 NZD
Retailer 2$12,667 NZD
Retailer 6$12,979 NZD

35 data points across 11 retailers

13 retailers$6,142 NZD to $12,979 NZD

A
Cheapest Retailer
-
$6,142 NZD
A
Retailer 2
-
$6,187 NZD
View
A
Retailer 3
-
$6,572 NZD
View
A
Retailer 4
-
$6,815 NZD
View
Final sale: no returns
A
Retailer 5
-
$6,858 NZD
View
A
Retailer 6
-
$7,448 NZD
View
A
Retailer 7
-
$7,540 NZD
View
B+
Retailer 8
-
$8,255 NZD
View
B+
Retailer 9
-
$8,345 NZD
View
B+
Retailer 10
-
$9,171 NZD
View
B
Retailer 11
-
$12,667 NZD
View
B
Retailer 12
-
$12,979 NZD
View
Most Expensive
NZ Jewellers
d10b7ccd-f3b3-46f0-9bfe-4f703594e72c · Sep 30
$14,954 NZD
$8,290 USD
View
Price last confirmed 37 days ago
12 more retailers have this diamond
Prices start from $6,142 NZDSave up to $6,837 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
$6,142 NZD