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Radiant|Natural|GIA

1.20ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 1558394082

Certificate GIA 1558394082

Diamond specifications and retailer prices

From $3,487 NZD
As of November 6, 2026
Save $4,582 NZD (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,069 NZD at NZ Jewellers · As of November 5, 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 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 1558394082. Listed at 12 retailers as of November 5, 2026, with prices from $3,487 to $8,069, a $4,582 spread on the same certified stone. NZ Jewellers lists it at $8,069. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558394082
Dimensions6.85 × 5.22 × 3.63 mm
L/W Ratio1.31
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
6.85 mm5.22 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558394082
Side View
Table 66.0%CrownGirdlePavilionCulet: NoneDepth 69.5%

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: $8,069 NZD|Low: $3,332 NZD|High: $8,403 NZD|Avg: $4,693 NZD|-4.0%
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 11$3,487 NZD
Retailer 12$3,561 NZD
Retailer 5$3,792 NZD
Retailer 3$3,799 NZD
Retailer 8$3,860 NZD
Retailer 10$3,860 NZD
Retailer 4$4,037 NZD
Retailer 2$4,192 NZD
Retailer 9$4,454 NZD
Retailer 6$5,240 NZD
Retailer 7$6,743 NZD
NZ Jewellers$8,069 NZD

46 data points across 12 retailers

12 retailers$3,487 NZD to $8,069 NZD

B+
Cheapest Retailer
-
$3,487 NZD
B+
Retailer 2
-
$3,561 NZD
View
Final sale: no returns
B+
Retailer 3
-
$3,792 NZD
View
B+
Retailer 4
-
$3,799 NZD
View
B+
Retailer 5
-
$3,860 NZD
View
Retailer 6
-
$3,860 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$4,037 NZD
View
B
Retailer 8
-
$4,192 NZD
View
B
Retailer 9
-
$4,454 NZD
View
B
Retailer 10
-
$5,240 NZD
View
B
Retailer 11
-
$6,743 NZD
View
Most Expensive
C
NZ Jewellers
7b1abb6f-6574-47ae-b48d-66644d2c540c · Nov 5
$8,069 NZD
$4,473 USD
View
11 more retailers have this diamond
Prices start from $3,487 NZDSave up to $4,582 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.

B+
1.20ct Radiant
$3,487 NZD