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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 5546336555

Certificate GIA 5546336555

Diamond specifications and retailer prices

From $3,321 NZD
HK$14,600 HKD
As of November 1, 2026
Save $4,360 NZD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,164 NZD at NZ Jewellers · As of October 17, 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 I 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 5546336555. Listed at 20 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546336555
Dimensions6.87 × 5.41 × 3.89 mm
L/W Ratio1.27
Top View
6.87 mm5.41 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546336555
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 71.9%

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 1
Current: $4,022 NZD|Low: $3,299 NZD|High: $7,774 NZD|Avg: $4,747 NZD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$3,321 NZD
Retailer 6$3,509 NZD
Retailer 11$3,882 NZD
Retailer 1$4,022 NZD
Retailer 2$4,628 NZD
Retailer 12$4,633 NZD
Retailer 5$4,658 NZD
Retailer 3$4,763 NZD
Retailer 9$5,388 NZD
Retailer 4$5,427 NZD
Retailer 10$5,473 NZD
Retailer 7$7,681 NZD

33 data points across 12 retailers

20 retailers$3,321 NZD to $7,681 NZD

A
Cheapest Retailer
-
$3,321 NZD
HK$14,600 HKD
A
Retailer 2
-
$3,509 NZD
₹188,024 INR
View
A
Retailer 3
-
$3,882 NZD
SGD 2,952 SGD
View
A
Retailer 4
-
$4,022 NZD
$2,263 USD
View
Final sale: no returns
A
Retailer 5
-
$4,145 NZD
$2,332 USD
View
A
Retailer 6
-
$4,150 NZD
$2,335 USD
View
Retailer 7
-
$4,383 NZD
$2,466 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$4,383 NZD
$2,466 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
$4,584 NZD
A$3,968 AUD
View
Retailer 10
-
$4,585 NZD
$2,580 USD
View
Price last confirmed 16 days ago
B+
Retailer 11
-
$4,628 NZD
SGD 3,519 SGD
View
B+
Retailer 12
-
$4,633 NZD
$2,607 USD
View
B+
Retailer 13
-
$4,658 NZD
£2,064 GBP
View
B+
Retailer 14
-
$4,763 NZD
$2,680 USD
View
Retailer 15
-
$5,058 NZD
$2,846 USD
View
Price last confirmed 14 days ago
B+
Retailer 16
-
$5,388 NZD
ZAR 48,977 ZAR
View
Retailer 17
-
$5,427 NZD
A$4,698 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
$5,473 NZD
€2,933 EUR
View
B
Retailer 19
-
$7,681 NZD
£3,403 GBP
View
Most Expensive
NZ Jewellers
c0e566b7-b3ad-47b4-b208-21f20e29ae78 · Oct 17
$9,164 NZD
$5,156 USD
View
Price last confirmed 15 days ago
19 more retailers have this diamond
Prices start from $3,321 NZDSave up to $4,360 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
$3,321 NZD