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Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6512913754

Certificate GIA 6512913754

Diamond specifications and retailer prices

From $8,952 AUD
As of November 5, 2026
Save $7,067 AUD (44%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $19,328 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 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 6512913754. Listed at 27 retailers as of November 5, 2026, with a 79% 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
Crown angle44.83°
Pavilion angle30.31°
OriginNatural
Grading LabGIA
CertificateGIA 6512913754
Dimensions7.63 × 5.86 × 4.01 mm
L/W Ratio1.30
Top View
7.63 mm5.86 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512913754
Side View
Table 67.0%Crown 44.83°Girdle: THK-VTKPavilion 30.31°Culet: NoneDepth 68.3%

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 5
Current: $11,109 AUD|Low: $7,620 AUD|High: $16,298 AUD|Avg: $11,464 AUD
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
Retailer 15
Retailer 16
November 7, 2026
Retailer 15$9,144 AUD
Retailer 5$9,258 AUD
Retailer 8$9,664 AUD
Retailer 11$10,263 AUD
Retailer 7$10,668 AUD
Retailer 10$10,789 AUD
Retailer 16$10,824 AUD
Retailer 1$11,109 AUD
Retailer 6$11,143 AUD
Retailer 2$11,381 AUD
Retailer 4$11,381 AUD
Retailer 14$11,650 AUD
Retailer 3$11,760 AUD
Retailer 12$11,904 AUD
Retailer 13$14,098 AUD
Retailer 9$16,020 AUD

37 data points across 16 retailers

27 retailers$8,952 AUD to $16,020 AUD

A
Cheapest Retailer
-
$8,952 AUD
A
Retailer 2
-
$8,977 AUD
View
B+
Retailer 3
-
$9,130 AUD
View
A
Retailer 4
-
$9,144 AUD
View
B+
Retailer 5
-
$9,258 AUD
View
B+
Retailer 6
-
$9,664 AUD
View
Final sale: no returns
B+
Retailer 7
-
$9,686 AUD
View
B+
Retailer 8
-
$10,263 AUD
View
B+
Retailer 9
-
$10,288 AUD
View
Retailer 10
-
$10,470 AUD
View
Price last confirmed 40 days ago
B+
Retailer 11
-
$10,603 AUD
View
Retailer 12
-
$10,626 AUD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$10,668 AUD
View
B+
Retailer 14
-
$10,789 AUD
View
B+
Retailer 15
-
$10,824 AUD
View
Retailer 16
-
$11,109 AUD
View
Retailer 17
-
$11,143 AUD
View
Price last confirmed 16 days ago
B+
Retailer 18
-
$11,381 AUD
View
B+
Retailer 19
-
$11,381 AUD
View
B
Retailer 20
-
$11,650 AUD
View
B
Retailer 21
-
$11,712 AUD
View
B
Retailer 22
-
$11,760 AUD
View
B+
Retailer 23
-
$11,904 AUD
View
Retailer 24
-
$12,080 AUD
View
Price last confirmed 39 days ago
B
Retailer 25
-
$14,098 AUD
View
B
Retailer 26
-
$16,020 AUD
View
Most Expensive
NZ Jewellers
c49dc6d8-e438-456d-8d9d-4016756cf5bb · Sep 30
$19,328 AUD
$13,280 USD
View
Price last confirmed 37 days ago
26 more retailers have this diamond
Prices start from $8,952 AUDSave up to $7,067 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
$8,952 AUD