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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5553693574

Certificate GIA 5553693574

Diamond specifications and retailer prices

From $4,577 NZD
$2,575 USD
As of November 1, 2026
Save $5,216 NZD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,793 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 5553693574. Listed at 20 retailers as of October 30, 2026, with prices from $4,577 to $9,793, a $5,216 spread on the same certified stone. NZ Jewellers lists it at $9,793. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5553693574
Dimensions7.44 × 5.28 × 3.59 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.44 mm5.28 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5553693574
Side View
Table 68.0%CrownGirdle: STK-STKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,793 NZD|Low: $4,058 NZD|High: $10,028 NZD|Avg: $5,470 NZD|-2.3%
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 11$4,235 NZD
Retailer 9$4,577 NZD
Retailer 4$4,639 NZD
Retailer 6$4,783 NZD
Retailer 3$4,818 NZD
Retailer 10$4,840 NZD
Retailer 5$4,985 NZD
Retailer 16$5,092 NZD
Retailer 18$5,092 NZD
Retailer 17$5,289 NZD
Retailer 2$5,483 NZD
Retailer 13$5,825 NZD
Retailer 7$5,876 NZD
Retailer 8$6,284 NZD
Retailer 19$6,523 NZD
Retailer 15$6,580 NZD
Retailer 14$6,909 NZD
Retailer 12$9,401 NZD
NZ Jewellers$9,793 NZD

22 data points across 19 retailers

20 retailers$4,577 NZD to $9,793 NZD

B+
Cheapest Retailer
-
$4,577 NZD
$2,575 USD
Retailer 2
-
$4,589 NZD
$2,582 USD
View
Price last confirmed 17 days ago
Retailer 3
-
$4,589 NZD
$2,582 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$4,639 NZD
$2,610 USD
View
B+
Retailer 5
-
$4,783 NZD
$2,691 USD
View
B+
Retailer 6
-
$4,818 NZD
$2,711 USD
View
Retailer 7
-
$4,840 NZD
$2,723 USD
View
Price last confirmed 15 days ago
B+
Retailer 8
-
$4,985 NZD
$2,805 USD
View
B+
Retailer 9
-
$5,092 NZD
$2,865 USD
View
B+
Retailer 10
-
$5,289 NZD
$2,976 USD
View
Retailer 11
-
$5,374 NZD
A$4,652 AUD
View
Price last confirmed 25 days ago
B
Retailer 12
-
$5,483 NZD
£2,429 GBP
View
B
Retailer 13
-
$5,825 NZD
£2,581 GBP
View
B
Retailer 14
-
$5,870 NZD
$3,303 USD
View
B
Retailer 15
-
$5,876 NZD
$3,306 USD
View
B
Retailer 16
-
$6,284 NZD
$3,536 USD
View
B
Retailer 17
-
$6,580 NZD
€3,526 EUR
View
B
Retailer 18
-
$6,909 NZD
ZAR 62,805 ZAR
View
B
Retailer 19
-
$9,401 NZD
£4,165 GBP
View
Most Expensive
B
NZ Jewellers
ffc4360b-9be8-481a-9984-68ecb1bbfab8 · Oct 30
$9,793 NZD
$5,510 USD
View
19 more retailers have this diamond
Prices start from $4,577 NZDSave up to $5,216 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+
1.20ct Radiant
$4,577 NZD