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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5553653122

Certificate GIA 5553653122

Diamond specifications and retailer prices

From $9,351 NZD
As of November 6, 2026
Save $8,891 NZD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,927 NZD at NZ Jewellers · As of October 18, 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 5553653122. Listed at 18 retailers as of November 6, 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5553653122
Dimensions7.91 × 6.08 × 4.19 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
7.91 mm6.08 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5553653122
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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 6
Current: $18,243 NZD|Low: $9,305 NZD|High: $18,654 NZD|Avg: $12,624 NZD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$9,351 NZD
Retailer 5$9,817 NZD
Retailer 8$11,161 NZD
Retailer 2$11,491 NZD
Retailer 3$11,500 NZD
Retailer 4$11,823 NZD
Retailer 10$12,737 NZD
Retailer 6$13,526 NZD
Retailer 7$15,191 NZD
Retailer 1$18,243 NZD

30 data points across 10 retailers

18 retailers$9,351 NZD to $18,243 NZD

A
Cheapest Retailer
-
$9,351 NZD
A
Retailer 2
-
$9,817 NZD
View
A
Retailer 3
-
$11,161 NZD
View
B+
Retailer 4
-
$11,491 NZD
View
Final sale: no returns
B+
Retailer 5
-
$11,500 NZD
View
B+
Retailer 6
-
$11,540 NZD
View
Retailer 7
-
$11,550 NZD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$11,823 NZD
View
Retailer 9
-
$12,395 NZD
View
Price last confirmed 34 days ago
B+
Retailer 10
-
$12,461 NZD
View
Retailer 11
-
$12,512 NZD
View
Price last confirmed 20 days ago
Retailer 12
-
$12,705 NZD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$12,737 NZD
View
B+
Retailer 14
-
$13,526 NZD
View
Retailer 15
-
$14,437 NZD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$15,191 NZD
View
B
Retailer 17
-
$18,243 NZD
View
Most Expensive
NZ Jewellers
b99a8c8d-00a3-444e-93bb-a632b137d102 · Oct 18
$20,927 NZD
$11,601 USD
View
Price last confirmed 20 days ago
17 more retailers have this diamond
Prices start from $9,351 NZDSave up to $8,891 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
$9,351 NZD