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Radiant|Natural|GIA

1.70ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6561079650

Certificate GIA 6561079650

Diamond specifications and retailer prices

From $15,942 AUD
As of November 4, 2026
Save $12,416 AUD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $28,358 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561079650. Listed at 11 retailers as of November 4, 2026, with prices from $15,942 to $28,358, a $12,416 spread on the same certified stone. NZ Jewellers lists it at $28,358. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561079650
Dimensions8.23 × 5.85 × 3.99 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
8.23 mm5.85 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561079650
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCuletDepth 68.1%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $28,358 AUD|Low: $15,942 AUD|High: $28,358 AUD|Avg: $20,485 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
November 7, 2026
Retailer 12$15,942 AUD
Retailer 4$16,314 AUD
Retailer 7$18,408 AUD
Retailer 11$18,433 AUD
Retailer 9$18,716 AUD
Retailer 10$19,267 AUD
Retailer 8$20,661 AUD
Retailer 3$21,269 AUD
Retailer 6$22,774 AUD
Retailer 2$23,039 AUD
Retailer 5$26,432 AUD
NZ Jewellers$28,358 AUD

43 data points across 12 retailers

11 retailers$15,942 AUD to $28,358 AUD

B+
Cheapest Retailer
-
$15,942 AUD
B+
Retailer 2
-
$16,314 AUD
View
B
Retailer 3
-
$18,408 AUD
View
B
Retailer 4
-
$18,433 AUD
View
B
Retailer 5
-
$18,716 AUD
View
B
Retailer 6
-
$20,661 AUD
View
B
Retailer 7
-
$21,269 AUD
View
B
Retailer 8
-
$22,774 AUD
View
Retailer 9
-
$23,039 AUD
View
B
Retailer 10
-
$26,432 AUD
View
Most Expensive
B
NZ Jewellers
8f0959f0-b466-41e4-8c95-1cac699a9eb8 · Nov 5
$28,358 AUD
$19,485 USD
View
10 more retailers have this diamond
Prices start from $15,942 AUDSave up to $12,416 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
$15,942 AUD