Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 5038

Certificate GIA 5038

Diamond specifications and retailer prices

From $3,077 AUD
As of November 6, 2026
Save $4,957 AUD (62%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $8,431 AUD at NZ Jewellers · As of October 9, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 28 retailers as of November 5, 2026, with a 161% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.20
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5038
Dimensions6.91 × 5.13 × 3.63 mm
L/W Ratio1.35
Top View
6.91 mm5.13 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5038
Side View
Table 64.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.8%

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 6
Current: $8,034 AUD|Low: $3,077 AUD|High: $8,431 AUD|Avg: $4,303 AUD|-4.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$3,077 AUD
Retailer 4$3,282 AUD
Retailer 3$3,481 AUD
Retailer 2$3,643 AUD
Retailer 8$3,653 AUD
Retailer 5$3,796 AUD
Retailer 6$4,017 AUD
NZ Jewellers$8,034 AUD

21 data points across 8 retailers

28 retailers$3,077 AUD to $8,034 AUD

B+
Cheapest Retailer
-
$3,077 AUD
B+
Retailer 2
-
$3,282 AUD
View
B+
Retailer 3
-
$3,481 AUD
View
B
Retailer 4
-
$3,643 AUD
View
Retailer 5
-
$3,653 AUD
View
Price last confirmed 57 days ago
Retailer 6
-
$3,653 AUD
View
Price last confirmed 37 days ago
Retailer 7
-
$3,653 AUD
View
Price last confirmed 46 days ago
Retailer 8
-
$3,653 AUD
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Price last confirmed 30 days ago
Retailer 9
-
$3,653 AUD
View
Price last confirmed 34 days ago
Retailer 10
-
$3,653 AUD
View
Price last confirmed 28 days ago
Retailer 11
-
$3,653 AUD
View
Price last confirmed 31 days ago
Retailer 12
-
$3,653 AUD
View
Price last confirmed 26 days ago
B
Retailer 13
-
$3,796 AUD
View
Retailer 14
-
$3,822 AUD
View
Price last confirmed 38 days ago
B
Retailer 15
-
$4,017 AUD
View
Retailer 16
-
$4,216 AUD
View
Price last confirmed 45 days ago
Retailer 17
-
$4,216 AUD
View
Price last confirmed 62 days ago
Retailer 18
-
$4,216 AUD
View
Price last confirmed 57 days ago
Retailer 19
-
$4,216 AUD
View
Price last confirmed 31 days ago
Retailer 20
-
$4,216 AUD
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Price last confirmed 36 days ago
Retailer 21
-
$4,216 AUD
View
Price last confirmed 39 days ago
Retailer 22
-
$4,216 AUD
View
Price last confirmed 29 days ago
C
Retailer 23
-
$8,034 AUD
View
Retailer 24
-
$8,431 AUD
View
Price last confirmed 35 days ago
Retailer 25
-
$8,431 AUD
View
Price last confirmed 47 days ago
Retailer 26
-
$8,431 AUD
View
Price last confirmed 39 days ago
Retailer 27
-
$8,431 AUD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
4713beec-22a6-4930-9ec2-00c24901402a · Oct 9
$8,431 AUD
$5,793 USD
View
Price last confirmed 28 days ago
27 more retailers have this diamond
Prices start from $3,077 AUDSave up to $4,957 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+
1.20ct Radiant
$3,077 AUD