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Radiant|Natural|GIA

1.70ct H SI1 Radiant Natural Diamond

VG • H/SI1 • GIA 1559517675

Certificate GIA 1559517675

Diamond specifications and retailer prices

From $10,469 AUD
As of November 2, 2026
12 retailers carry this diamond
Most expensive: $19,069 AUD 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 H 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 1559517675. Listed at 12 retailers as of November 2, 2026. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1559517675
Dimensions7.71 × 6.11 × 4.19 mm
L/W Ratio1.26
Culet sizeNone
Top View
7.71 mm6.11 mm1.70 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1559517675
Side View
Table 69.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $12,408 AUD|Low: $8,272 AUD|High: $16,081 AUD|Avg: $10,789 AUD|-0.8%
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
October 10, 2026
Retailer 9$8,740 AUD
Retailer 4$8,834 AUD
Retailer 5$8,962 AUD
Retailer 12$9,008 AUD
Retailer 6$9,348 AUD
Retailer 2$9,553 AUD
Retailer 3$9,778 AUD
Retailer 13$10,469 AUD
Retailer 7$10,833 AUD
Retailer 10$11,036 AUD
Retailer 1$12,408 AUD
Retailer 14$12,560 AUD
Retailer 11$13,747 AUD
Retailer 8$16,039 AUD

22 data points across 14 retailers

12 retailers

Retailer 1
-
$9,008 AUD
$6,313 USD
Price last confirmed 26 days ago
Retailer 2
-
$9,348 AUD
$6,551 USD
View
Price last confirmed 19 days ago
Retailer 3
-
$9,535 AUD
$6,682 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$10,329 AUD
$7,239 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$10,469 AUD
View
Retailer 6
-
$10,488 AUD
$7,350 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$11,036 AUD
View
Price last confirmed 29 days ago
Retailer 8
-
$11,919 AUD
$8,353 USD
View
Price last confirmed 24 days ago
Retailer 9
-
$12,560 AUD
$8,802 USD
View
Price last confirmed 24 days ago
Retailer 10
-
$13,747 AUD
ZAR 155,637 ZAR
View
Price last confirmed 32 days ago
Retailer 11
-
$16,039 AUD
£8,851 GBP
View
Price last confirmed 25 days ago
Most Expensive
NZ Jewellers
1a0c54cc-1ee1-43b1-ad80-1907cb8bf80d · Sep 30
$19,069 AUD
$13,364 USD
View
Price last confirmed 33 days ago
11 more retailers have this diamond
Prices start from $10,469 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.

B+
1.70ct Radiant
$10,469 AUD