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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 7538281786

Certificate GIA 7538281786

Diamond specifications and retailer prices

From $8,289 AUD
As of November 6, 2026
Save $9,082 AUD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $17,370 AUD at NZ Jewellers · As of November 5, 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 7538281786. Listed at 19 retailers as of November 5, 2026, with prices from $8,289 to $17,370, a $9,082 spread on the same certified stone. NZ Jewellers lists it at $17,370. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7538281786
Dimensions7.76 × 5.96 × 4.15 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.76 mm5.96 mm1.70 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7538281786
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: $17,370 AUD|Low: $8,289 AUD|High: $17,535 AUD|Avg: $10,734 AUD|-0.9%
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
Retailer 17
November 7, 2026
Retailer 9$8,289 AUD
Retailer 6$8,686 AUD
Retailer 7$8,767 AUD
Retailer 11$8,980 AUD
Retailer 3$9,053 AUD
Retailer 5$9,265 AUD
Retailer 16$9,409 AUD
Retailer 17$9,409 AUD
Retailer 13$9,801 AUD
Retailer 12$9,862 AUD
Retailer 2$9,987 AUD
Retailer 8$10,175 AUD
Retailer 4$10,857 AUD
Retailer 14$11,284 AUD
Retailer 15$12,672 AUD
Retailer 10$15,219 AUD
NZ Jewellers$17,370 AUD

27 data points across 17 retailers

19 retailers$8,289 AUD to $17,370 AUD

A
Cheapest Retailer
-
$8,289 AUD
A
Retailer 2
-
$8,686 AUD
View
Final sale: no returns
Retailer 3
-
$8,767 AUD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$8,980 AUD
View
A
Retailer 5
-
$9,053 AUD
View
B+
Retailer 6
-
$9,265 AUD
View
B+
Retailer 7
-
$9,409 AUD
View
B+
Retailer 8
-
$9,409 AUD
View
B+
Retailer 9
-
$9,801 AUD
View
B+
Retailer 10
-
$9,862 AUD
View
Retailer 11
-
$9,987 AUD
View
Retailer 12
-
$10,175 AUD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$10,668 AUD
View
B+
Retailer 14
-
$10,857 AUD
View
B+
Retailer 15
-
$11,284 AUD
View
Retailer 16
-
$11,554 AUD
View
Price last confirmed 15 days ago
B+
Retailer 17
-
$12,672 AUD
View
B
Retailer 18
-
$15,219 AUD
View
Most Expensive
B
NZ Jewellers
563d825d-6565-4a33-aed0-1c3b04c00733 · Nov 5
$17,370 AUD
$11,935 USD
View
18 more retailers have this diamond
Prices start from $8,289 AUDSave up to $9,082 AUD

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 AUD