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Radiant|Natural|GIA

1.20ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6552456281

Certificate GIA 6552456281

Diamond specifications and retailer prices

From $4,456 NZD
As of November 4, 2026
Save $4,261 NZD (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,717 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552456281. Listed at 13 retailers as of November 2, 2026, with prices from $4,456 to $8,717, a $4,261 spread on the same certified stone. MOH London lists it at $8,717. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552456281
Dimensions5.85 × 5.73 × 3.87 mm
L/W Ratio1.02
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
5.85 mm5.73 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552456281
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NDepth 67.5%

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 4
Current: $8,717 NZD|Low: $4,456 NZD|High: $8,822 NZD|Avg: $5,659 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$4,456 NZD
Retailer 10$4,793 NZD
Retailer 6$4,889 NZD
Retailer 7$5,166 NZD
Retailer 2$5,266 NZD
Retailer 5$5,520 NZD
Retailer 8$5,574 NZD
Retailer 3$5,791 NZD
Retailer 4$6,072 NZD
MOH London$8,717 NZD

46 data points across 10 retailers

13 retailers$4,456 NZD to $8,717 NZD

A
Cheapest Retailer
-
$4,456 NZD
A
Retailer 2
-
$4,793 NZD
View
A
Retailer 3
-
$4,889 NZD
View
A
Retailer 4
-
$5,166 NZD
View
A
Retailer 5
-
$5,230 NZD
View
A
Retailer 6
-
$5,266 NZD
View
A
Retailer 7
-
$5,520 NZD
View
Retailer 8
-
$5,574 NZD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$5,680 NZD
View
B+
Retailer 10
-
$5,718 NZD
View
B+
Retailer 11
-
$5,791 NZD
View
B+
Retailer 12
-
$6,072 NZD
View
Most Expensive
B
MOH London
82E0605D6 · Nov 2
$8,717 NZD
£3,805 GBP
View
12 more retailers have this diamond
Prices start from $4,456 NZDSave up to $4,261 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
$4,456 NZD