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Radiant|Natural|GIA

1.20ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 2556797520

Certificate GIA 2556797520

Diamond specifications and retailer prices

From $2,495 NZD
As of November 6, 2026
Save $5,677 NZD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,172 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2556797520. Listed at 16 retailers as of November 5, 2026, with prices from $2,495 to $8,172, a $5,677 spread on the same certified stone. NZ Jewellers lists it at $8,172. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556797520
Dimensions7.17 × 5.31 × 3.72 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Pinpoint, Needle
Top View
7.17 mm5.31 mm1.20 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556797520
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 70.1%

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 6
Current: $8,172 NZD|Low: $2,495 NZD|High: $8,314 NZD|Avg: $3,990 NZD|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 9$2,495 NZD
Retailer 14$3,052 NZD
Retailer 2$3,076 NZD
Retailer 8$3,144 NZD
Retailer 12$3,350 NZD
Retailer 6$3,390 NZD
Retailer 3$3,505 NZD
Retailer 10$3,597 NZD
Retailer 7$3,637 NZD
Retailer 4$3,866 NZD
Retailer 13$4,088 NZD
Retailer 11$4,259 NZD
Retailer 5$5,902 NZD
NZ Jewellers$8,172 NZD

25 data points across 14 retailers

16 retailers$2,495 NZD to $8,172 NZD

A
Cheapest Retailer
-
$2,495 NZD
B+
Retailer 2
-
$3,052 NZD
View
B+
Retailer 3
-
$3,076 NZD
View
B+
Retailer 4
-
$3,144 NZD
View
B+
Retailer 5
-
$3,350 NZD
View
Retailer 6
-
$3,390 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$3,505 NZD
View
B+
Retailer 8
-
$3,597 NZD
View
B+
Retailer 9
-
$3,637 NZD
View
Retailer 10
-
$3,752 NZD
View
Price last confirmed 39 days ago
B+
Retailer 11
-
$3,866 NZD
View
Retailer 12
-
$4,001 NZD
View
Price last confirmed 62 days ago
B+
Retailer 13
-
$4,088 NZD
View
B
Retailer 14
-
$4,259 NZD
View
B
Retailer 15
-
$5,902 NZD
View
Most Expensive
C
NZ Jewellers
c20c1bc0-666b-47b3-9666-dd86d4768dea · Nov 5
$8,172 NZD
$4,530 USD
View
15 more retailers have this diamond
Prices start from $2,495 NZDSave up to $5,677 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
$2,495 NZD