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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 5242037212

Certificate GIA 5242037212

Diamond specifications and retailer prices

From $3,066 NZD
HK$13,500 HKD
As of November 1, 2026
Save $5,743 NZD (65%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,809 NZD at NZ Jewellers · As of October 30, 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 5242037212. Listed at 8 retailers as of October 30, 2026, with prices from $3,066 to $8,809, a $5,743 spread on the same certified stone. NZ Jewellers lists it at $8,809. 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
Pavilion angle59.91°
OriginNatural
Grading LabGIA
CertificateGIA 5242037212
Dimensions7.10 × 5.33 × 3.65 mm
L/W Ratio1.33
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.10 mm5.33 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242037212
Side View
Table 64.0%CrownGirdle: MED-STKPavilion 59.91°Culet: NoneDepth 68.5%

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 1
Current: $8,809 NZD|Low: $3,066 NZD|High: $9,462 NZD|Avg: $5,560 NZD|-6.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$3,066 NZD
Retailer 2$4,163 NZD
Retailer 7$4,312 NZD
Retailer 5$4,407 NZD
Retailer 8$4,611 NZD
Retailer 4$6,409 NZD
Retailer 3$7,423 NZD
NZ Jewellers$8,809 NZD

27 data points across 8 retailers

8 retailers$3,066 NZD to $8,809 NZD

A
Cheapest Retailer
-
$3,066 NZD
HK$13,500 HKD
A
Retailer 2
-
$4,163 NZD
$2,346 USD
View
A
Retailer 3
-
$4,312 NZD
SGD 3,284 SGD
View
A
Retailer 4
-
$4,407 NZD
$2,484 USD
View
B+
Retailer 5
-
$4,611 NZD
A$3,998 AUD
View
B+
Retailer 6
-
$6,409 NZD
€3,440 EUR
View
B
Retailer 7
-
$7,423 NZD
£3,294 GBP
View
Most Expensive
B
NZ Jewellers
c09eb73a-2936-4dab-a5a3-4fba6714d1d3 · Oct 30
$8,809 NZD
$4,965 USD
View
7 more retailers have this diamond
Prices start from $3,066 NZDSave up to $5,743 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
$3,066 NZD