Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 2544348939

Certificate GIA 2544348939

Diamond specifications and retailer prices

From $12,538 AUD
As of November 5, 2026
Save $2,369 AUD (16%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $24,215 AUD at NZ Jewellers · As of October 27, 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 2544348939. Listed at 20 retailers as of November 5, 2026, with a relatively tight 19% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2544348939
Dimensions7.91 × 6.09 × 4.18 mm
L/W Ratio1.30
Top View
7.91 mm6.09 mm1.70 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544348939
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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 5
Current: $24,215 AUD|Low: $11,336 AUD|High: $24,215 AUD|Avg: $14,721 AUD
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 6, 2026
Retailer 9$11,336 AUD
Retailer 4$12,036 AUD
Retailer 5$12,107 AUD
Retailer 12$12,208 AUD
Retailer 20$12,538 AUD
Retailer 10$12,904 AUD
Retailer 6$13,116 AUD
Retailer 2$13,365 AUD
Retailer 18$13,381 AUD
Retailer 13$13,444 AUD
Retailer 15$13,780 AUD
Retailer 14$13,877 AUD
Retailer 21$13,879 AUD
Retailer 8$14,829 AUD
Retailer 3$14,908 AUD
Retailer 7$15,135 AUD
Retailer 16$15,734 AUD
Retailer 11$15,940 AUD
Retailer 19$17,472 AUD
Retailer 17$20,204 AUD
NZ Jewellers$24,215 AUD

31 data points across 21 retailers

20 retailers$12,538 AUD to $14,908 AUD

Retailer 1
-
$11,336 AUD
Price last confirmed 12 days ago
Retailer 2
-
$12,036 AUD
View
Price last confirmed 10 days ago
Retailer 3
-
$12,107 AUD
View
Price last confirmed 13 days ago
Retailer 4
-
$12,208 AUD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
$12,538 AUD
View
Retailer 6
-
$12,904 AUD
View
Price last confirmed 13 days ago
Retailer 7
-
$13,116 AUD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$13,365 AUD
View
Retailer 9
-
$13,381 AUD
View
Price last confirmed 15 days ago
Retailer 10
-
$13,444 AUD
View
Price last confirmed 10 days ago
Retailer 11
-
$13,877 AUD
View
Price last confirmed 38 days ago
B
Retailer 12
-
$13,879 AUD
View
Retailer 13
-
$14,829 AUD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$14,908 AUD
View
Retailer 15
-
$15,135 AUD
View
Price last confirmed 11 days ago
Retailer 16
-
$15,734 AUD
View
Price last confirmed 11 days ago
Retailer 17
-
$15,940 AUD
View
Price last confirmed 15 days ago
Retailer 18
-
$17,472 AUD
View
Price last confirmed 16 days ago
Retailer 19
-
$20,204 AUD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
7c9043b3-cb7d-40e0-b973-b8bff0fafadc · Oct 27
$24,215 AUD
$16,638 USD
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from $12,538 AUDSave up to $2,369 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
$12,538 AUD