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Radiant|Natural|GIA

1.23ct K SI1 Radiant Natural Diamond

GD • K/SI1 • GIA 2406024276

Certificate GIA 2406024276

Diamond specifications and retailer prices

From $4,479 NZD
As of November 4, 2026
Save $5,285 NZD (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,764 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.23ct natural radiant diamond

This 1.23ct 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 2406024276. Listed at 10 retailers as of November 2, 2026, with prices from $4,479 to $9,764, a $5,285 spread on the same certified stone. MOH London lists it at $9,764. 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

1.23
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2406024276
Dimensions6.77 × 5.35 × 3.67 mm
L/W Ratio1.27
Top View
6.77 mm5.35 mm1.23 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2406024276
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $9,764 NZD|Low: $4,479 NZD|High: $9,881 NZD|Avg: $6,046 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7$4,479 NZD
Retailer 6$4,649 NZD
Retailer 4$4,807 NZD
Retailer 5$5,711 NZD
Retailer 2$6,041 NZD
Retailer 3$6,795 NZD
MOH London$9,764 NZD

44 data points across 7 retailers

10 retailers$4,479 NZD to $9,764 NZD

B
Cheapest Retailer
-
$4,479 NZD
B
Retailer 2
-
$4,649 NZD
View
B
Retailer 3
-
$4,678 NZD
View
B
Retailer 4
-
$4,788 NZD
View
Retailer 5
-
$4,807 NZD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$5,711 NZD
View
B
Retailer 7
-
$6,041 NZD
View
Retailer 8
-
$6,774 NZD
View
Price last confirmed 15 days ago
B
Retailer 9
-
$6,795 NZD
View
Most Expensive
C
MOH London
D65B8CD85 · Nov 2
$9,764 NZD
£4,262 GBP
View
9 more retailers have this diamond
Prices start from $4,479 NZDSave up to $5,285 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
1.23ct Radiant
$4,479 NZD