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Radiant|Natural|GIA

1.20ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 3565412188

Certificate GIA 3565412188

Diamond specifications and retailer prices

From $3,350 NZD
As of November 5, 2026
Save $2,726 NZD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,076 NZD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3565412188. Listed at 12 retailers as of November 5, 2026, with prices from $3,350 to $6,076, a $2,726 spread on the same certified stone. Helzberg Diamonds lists it at $6,076. 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
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3565412188
Dimensions7.05 × 5.25 × 3.62 mm
L/W Ratio1.34
Culet sizeNone
Top View
7.05 mm5.25 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565412188
Side View
Table 68.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.0%

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: $6,076 NZD|Low: $3,332 NZD|High: $6,756 NZD|Avg: $4,333 NZD|-10.1%
Helzberg Diamonds
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 7$3,350 NZD
Retailer 12$3,362 NZD
Retailer 10$3,391 NZD
Retailer 8$3,400 NZD
Retailer 4$3,693 NZD
Retailer 2$3,709 NZD
Retailer 11$4,044 NZD
Retailer 5$4,255 NZD
Retailer 3$4,347 NZD
Retailer 6$4,766 NZD
Retailer 9$5,552 NZD
Helzberg Diamonds$6,076 NZD

30 data points across 12 retailers

12 retailers$3,350 NZD to $6,076 NZD

A
Cheapest Retailer
-
$3,350 NZD
A
Retailer 2
-
$3,362 NZD
View
A
Retailer 3
-
$3,391 NZD
View
A
Retailer 4
-
$3,400 NZD
View
B+
Retailer 5
-
$3,693 NZD
View
B+
Retailer 6
-
$3,709 NZD
View
B+
Retailer 7
-
$4,044 NZD
View
B+
Retailer 8
-
$4,255 NZD
View
B+
Retailer 9
-
$4,347 NZD
View
B
Retailer 10
-
$4,766 NZD
View
B
Retailer 11
-
$5,552 NZD
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLKHIHOO · Nov 6
$6,076 NZD
$3,368 USD
View
11 more retailers have this diamond
Prices start from $3,350 NZDSave up to $2,726 NZD

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
$3,350 NZD