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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

VG • K/SI1 • GIA 6531575129

Certificate GIA 6531575129

Diamond specifications and retailer prices

From $2,697 NZD
As of November 7, 2026
Save $4,135 NZD (61%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,831 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 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 6531575129. Listed at 11 retailers as of November 5, 2026, with prices from $2,697 to $6,831, a $4,135 spread on the same certified stone. NZ Jewellers lists it at $6,831. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531575129
Dimensions6.21 × 5.39 × 3.78 mm
L/W Ratio1.15
Top View
6.21 mm5.39 mm1.20 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6531575129
Side View
Table 66.0%CrownGirdlePavilionCulet: NoneDepth 70.2%

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 7
Current: $6,831 NZD|Low: $2,697 NZD|High: $6,831 NZD|Avg: $3,600 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3$2,697 NZD
Retailer 5$2,717 NZD
Retailer 8$2,800 NZD
Retailer 10$2,800 NZD
Retailer 11$2,930 NZD
Retailer 4$3,094 NZD
Retailer 9$3,231 NZD
Retailer 7$3,417 NZD
Retailer 6$3,803 NZD
Retailer 2$4,880 NZD
NZ Jewellers$6,831 NZD

32 data points across 11 retailers

11 retailers$2,697 NZD to $6,831 NZD

B+
Cheapest Retailer
-
$2,697 NZD
A
Retailer 2
-
$2,717 NZD
View
B+
Retailer 3
-
$2,800 NZD
View
Retailer 4
-
$2,800 NZD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$2,930 NZD
View
B+
Retailer 6
-
$3,094 NZD
View
B+
Retailer 7
-
$3,231 NZD
View
B+
Retailer 8
-
$3,417 NZD
View
B+
Retailer 9
-
$3,803 NZD
View
B
Retailer 10
-
$4,880 NZD
View
Most Expensive
B
NZ Jewellers
ad3ee33d-30af-4327-9fc5-47758b419eef · Nov 5
$6,831 NZD
$3,787 USD
View
10 more retailers have this diamond
Prices start from $2,697 NZDSave up to $4,135 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
$2,697 NZD