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Radiant|Natural|GIA

1.05ct J SI2 Radiant Natural Diamond

ID • J/SI2 • GIA 1539885570

Certificate GIA 1539885570

Diamond specifications and retailer prices

From $2,147 NZD
As of November 6, 2026
Save $2,554 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,651 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.05ct natural radiant diamond

This 1.05ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1539885570. Listed at 15 retailers as of November 4, 2026, with a 119% 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

1.05
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.3°
OriginNatural
Grading LabGIA
CertificateGIA 1539885570
Dimensions7.06 × 5.21 × 3.47 mm
L/W Ratio1.36
Girdle conditionPolished
Top View
7.06 mm5.21 mm1.05 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1539885570
Side View
Table 66.0%CrownGirdle: MED-STKPavilion 37.3°Culet: NoneDepth 66.7%

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 6
Current: $2,931 NZD|Low: $1,900 NZD|High: $4,833 NZD|Avg: $2,923 NZD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 3$2,147 NZD
Retailer 9$2,219 NZD
Retailer 5$2,255 NZD
Retailer 12$2,383 NZD
Retailer 11$2,502 NZD
Retailer 6$2,509 NZD
Retailer 2$2,598 NZD
Retailer 8$2,792 NZD
Retailer 4$2,865 NZD
Retailer 1$2,931 NZD
Retailer 7$3,676 NZD
Retailer 13$4,322 NZD
Retailer 10$4,701 NZD

35 data points across 13 retailers

15 retailers$2,147 NZD to $4,701 NZD

A
Cheapest Retailer
-
$2,147 NZD
A
Retailer 2
-
$2,219 NZD
View
Final sale: no returns
Retailer 3
-
$2,255 NZD
View
Price last confirmed 10 days ago
A
Retailer 4
-
$2,383 NZD
View
A
Retailer 5
-
$2,502 NZD
View
A
Retailer 6
-
$2,509 NZD
View
A
Retailer 7
-
$2,598 NZD
View
A
Retailer 8
-
$2,792 NZD
View
A
Retailer 9
-
$2,865 NZD
View
A
Retailer 10
-
$2,931 NZD
View
B+
Retailer 11
-
$3,092 NZD
View
B+
Retailer 12
-
$3,676 NZD
View
B+
Retailer 13
-
$4,322 NZD
View
B
Retailer 14
-
$4,701 NZD
View
Most Expensive
NZ Jewellers
65b92b3f-bbc3-4d26-8420-a3a0843836c6 · Sep 25
$6,651 NZD
$3,687 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from $2,147 NZDSave up to $2,554 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
1.05ct Radiant
$2,147 NZD