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Radiant|Natural|GIA

1.20ct K SI2 Radiant Natural Diamond

EX • K/SI2 • GIA 6532561528

Certificate GIA 6532561528

Diamond specifications and retailer prices

From $1,992 AUD
As of November 6, 2026
Save $2,563 AUD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,394 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532561528. Listed at 14 retailers as of November 4, 2026, with a 129% 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

1.20
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6532561528
Dimensions7.19 × 5.37 × 3.64 mm
L/W Ratio1.34
Top View
7.19 mm5.37 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6532561528
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,394 AUD|Low: $1,992 AUD|High: $6,459 AUD|Avg: $3,216 AUD|-1.0%
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 10$1,992 AUD
Retailer 5$2,086 AUD
Retailer 7$2,489 AUD
Retailer 3$2,621 AUD
Retailer 4$2,621 AUD
Retailer 9$2,707 AUD
Retailer 11$2,742 AUD
Retailer 2$2,893 AUD
Retailer 12$3,024 AUD
Retailer 6$3,540 AUD
Retailer 8$4,555 AUD
NZ Jewellers$6,394 AUD

32 data points across 12 retailers

14 retailers$1,992 AUD to $4,555 AUD

A
Cheapest Retailer
-
$1,992 AUD
A
Retailer 2
-
$2,086 AUD
View
A
Retailer 3
-
$2,489 AUD
View
B+
Retailer 4
-
$2,535 AUD
View
Retailer 5
-
$2,621 AUD
View
Price last confirmed 22 days ago
Retailer 6
-
$2,621 AUD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$2,707 AUD
View
Retailer 8
-
$2,742 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$2,770 AUD
View
B+
Retailer 10
-
$2,893 AUD
View
Retailer 11
-
$3,024 AUD
View
Price last confirmed 19 days ago
B+
Retailer 12
-
$3,540 AUD
View
B
Retailer 13
-
$4,555 AUD
View
Most Expensive
NZ Jewellers
056d61e4-c17a-4a34-b120-7c22290f0d21 · Oct 17
$6,394 AUD
$4,393 USD
View
Price last confirmed 20 days ago
13 more retailers have this diamond
Prices start from $1,992 AUDSave up to $2,563 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
1.20ct Radiant
$1,992 AUD