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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 7552598001

Certificate GIA 7552598001

Diamond specifications and retailer prices

From $2,780 NZD
$1,564 USD
As of November 2, 2026
Save $2,498 NZD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,346 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J 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 7552598001. Listed at 12 retailers as of November 2, 2026, with a 90% 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

1.00
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7552598001
Dimensions6.67 × 4.91 × 3.35 mm
L/W Ratio1.36
Girdle conditionPolished
Culet sizeNone
Key to symbols
Knot, Crystal, Needle
Top View
6.67 mm4.91 mm1.00 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7552598001
Side View
Table 68.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 68.1%

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 2
Current: $4,113 NZD|Low: $2,547 NZD|High: $5,340 NZD|Avg: $3,690 NZD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$2,780 NZD
Retailer 5$2,897 NZD
Retailer 2$3,375 NZD
Retailer 4$3,676 NZD
Retailer 7$3,930 NZD
Retailer 1$4,113 NZD
Retailer 3$5,277 NZD

42 data points across 7 retailers

12 retailers$2,780 NZD to $5,277 NZD

A
Cheapest Retailer
-
$2,780 NZD
$1,564 USD
Final sale: no returns
A
Retailer 2
-
$2,897 NZD
$1,630 USD
View
Retailer 3
-
$3,013 NZD
$1,695 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$3,013 NZD
$1,695 USD
View
Price last confirmed 26 days ago
Retailer 5
-
$3,151 NZD
$1,773 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
$3,375 NZD
£1,495 GBP
View
Retailer 7
-
$3,475 NZD
$1,955 USD
View
Price last confirmed 35 days ago
B+
Retailer 8
-
$3,676 NZD
ZAR 33,415 ZAR
View
Retailer 9
-
$3,930 NZD
A$3,402 AUD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
$4,113 NZD
€2,204 EUR
View
B
Retailer 11
-
$5,277 NZD
£2,338 GBP
View
Most Expensive
NZ Jewellers
70523df3-f6a3-4abf-bd35-067ea9c37820 · Sep 30
$7,346 NZD
$4,133 USD
View
Price last confirmed 33 days ago
11 more retailers have this diamond
Prices start from $2,780 NZDSave up to $2,498 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
1.00ct Radiant
$2,780 NZD