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Round|Natural|GIA

1.02ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 2257010496

Certificate GIA 2257010496

Diamond specifications and retailer prices

From $5,408 NZD
As of November 6, 2026
Save $2,406 NZD (31%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,718 NZD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 2257010496. Listed at 12 retailers as of November 5, 2026, with a 44% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.02
Carat
J
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2257010496
Dimensions6.37 × 6.31 × 4.03 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.37 mm6.31 mm1.02 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2257010496
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 63.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $6,436 NZD|Low: $5,408 NZD|High: $11,383 NZD|Avg: $7,067 NZD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$5,408 NZD
Retailer 5$5,547 NZD
Retailer 7$5,774 NZD
Retailer 8$6,094 NZD
Retailer 1$6,436 NZD
Retailer 2$6,876 NZD
Retailer 9$7,618 NZD
Retailer 3$7,814 NZD
Retailer 4$11,218 NZD

32 data points across 9 retailers

12 retailers$5,408 NZD to $7,814 NZD

B
Cheapest Retailer
-
$5,408 NZD
Retailer 2
-
$5,547 NZD
View
Price last confirmed 16 days ago
B
Retailer 3
-
$5,774 NZD
View
Retailer 4
-
$6,094 NZD
View
Price last confirmed 39 days ago
B
Retailer 5
-
$6,113 NZD
View
B
Retailer 6
-
$6,436 NZD
View
B
Retailer 7
-
$6,876 NZD
View
Retailer 8
-
$7,032 NZD
View
Price last confirmed 38 days ago
Retailer 9
-
$7,618 NZD
View
Price last confirmed 14 days ago
B
Retailer 10
-
$7,814 NZD
View
Retailer 11
-
$11,218 NZD
View
Price under review
Most Expensive
NZ Jewellers
b803a2a5-8a5e-4603-820e-968fc1fdebf5 · Sep 28
$11,718 NZD
$6,496 USD
View
Price under review
11 more retailers have this diamond
Prices start from $5,408 NZDSave up to $2,406 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
1.02ct Round
$5,408 NZD