Round|Natural|GIA

1.02ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2526780205

Certificate GIA 2526780205

Diamond specifications and retailer prices

From $3,440 NZD
As of November 4, 2026
Save $4,634 NZD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,021 NZD at NZ Jewellers · As of September 19, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526780205. Listed at 20 retailers as of November 4, 2026, with a 135% 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

1.02
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2526780205
Dimensions6.46 × 6.42 × 4.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.46 mm6.42 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526780205
Side View
Table 58.0%Crown 34.5°Girdle: MD-STKPavilion 41.6°Culet: NoneDepth 62.4%

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 4
Current: $9,662 NZD|Low: $3,417 NZD|High: $9,662 NZD|Avg: $5,264 NZD
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
November 6, 2026
Retailer 13$3,440 NZD
Retailer 7$4,174 NZD
Retailer 12$4,176 NZD
Retailer 14$4,257 NZD
Retailer 15$4,264 NZD
Retailer 6$4,315 NZD
Retailer 5$4,622 NZD
Retailer 8$4,780 NZD
Retailer 2$4,860 NZD
Retailer 3$4,874 NZD
Retailer 16$5,177 NZD
Retailer 4$5,332 NZD
Retailer 10$5,639 NZD
Retailer 9$5,726 NZD
Retailer 11$8,074 NZD
NZ Jewellers$9,662 NZD

40 data points across 16 retailers

20 retailers$3,440 NZD to $8,074 NZD

A
Cheapest Retailer
-
$3,440 NZD
A
Retailer 2
-
$4,174 NZD
View
A
Retailer 3
-
$4,176 NZD
View
A
Retailer 4
-
$4,257 NZD
View
B+
Retailer 5
-
$4,264 NZD
View
Final sale: no returns
B+
Retailer 6
-
$4,315 NZD
View
Retailer 7
-
$4,622 NZD
View
Price last confirmed 21 days ago
Retailer 8
-
$4,622 NZD
View
Price last confirmed 15 days ago
Retailer 9
-
$4,780 NZD
View
Price last confirmed 10 days ago
Retailer 10
-
$4,834 NZD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$4,860 NZD
View
B+
Retailer 12
-
$4,874 NZD
View
Retailer 13
-
$5,177 NZD
View
Price last confirmed 30 days ago
Retailer 14
-
$5,332 NZD
View
Price last confirmed 16 days ago
Retailer 15
-
$5,531 NZD
View
Price last confirmed 45 days ago
B+
Retailer 16
-
$5,639 NZD
View
B+
Retailer 17
-
$5,726 NZD
View
B
Retailer 18
-
$8,074 NZD
View
Retailer 19
-
$9,662 NZD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
81214d62-4064-46f1-8013-a28bef6db1be · Sep 19
$10,021 NZD
$5,555 USD
View
Price last confirmed 47 days ago
19 more retailers have this diamond
Prices start from $3,440 NZDSave up to $4,634 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
1.02ct Round
$3,440 NZD