Radiant|Natural|GIA

1.20ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 2556145465

Certificate GIA 2556145465

Diamond specifications and retailer prices

From $4,383 NZD
As of November 6, 2026
Save $1,066 NZD (20%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,515 NZD at Queensmith · As of October 9, 2026
View at Queensmith

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556145465. Listed at 13 retailers as of November 6, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556145465
Dimensions6.77 × 5.31 × 3.79 mm
L/W Ratio1.27
Top View
6.77 mm5.31 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556145465
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,515 NZD|Low: $4,221 NZD|High: $10,515 NZD|Avg: $6,031 NZD|+0.3%
Queensmith
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 2$4,383 NZD
Retailer 12$4,625 NZD
Retailer 3$4,990 NZD
Retailer 8$5,051 NZD
Retailer 4$5,136 NZD
Retailer 10$5,141 NZD
Retailer 6$5,231 NZD
Retailer 5$5,450 NZD
Retailer 11$5,690 NZD
Retailer 13$5,720 NZD
Retailer 14$5,906 NZD
Retailer 7$6,393 NZD
Retailer 9$6,424 NZD
Retailer 15$6,642 NZD
Retailer 16$9,323 NZD
Queensmith$10,515 NZD

18 data points across 16 retailers

13 retailers$4,383 NZD to $5,450 NZD

A
Cheapest Retailer
-
$4,383 NZD
Final sale: no returns
Retailer 2
-
$4,990 NZD
View
Price last confirmed 37 days ago
B+
Retailer 3
-
$5,136 NZD
View
Retailer 4
-
$5,183 NZD
View
Price last confirmed 38 days ago
Retailer 5
-
$5,231 NZD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
$5,450 NZD
View
Retailer 7
-
$5,758 NZD
View
Price last confirmed 39 days ago
Retailer 8
-
$5,906 NZD
View
Price last confirmed 34 days ago
Retailer 9
-
$6,393 NZD
View
Price last confirmed 31 days ago
Retailer 10
-
$6,642 NZD
View
Price last confirmed 38 days ago
Retailer 11
-
$9,323 NZD
View
Price last confirmed 33 days ago
Retailer 12
-
$9,597 NZD
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
2556145465 · Oct 9
$10,515 NZD
£4,590 GBP
View
Price last confirmed 28 days ago
12 more retailers have this diamond
Prices start from $4,383 NZDSave up to $1,066 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
$4,383 NZD