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Round|Natural|GIA

1.02ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1538610511

Certificate GIA 1538610511

Diamond specifications and retailer prices

From $4,189 NZD
As of November 5, 2026
Save $1,378 NZD (25%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,783 NZD at NZ Jewellers · As of October 17, 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 1538610511. Listed at 16 retailers as of November 5, 2026, with a 33% 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 angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1538610511
Dimensions6.45 × 6.39 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.45 mm6.39 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538610511
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 5
Current: $9,783 NZD|Low: $3,555 NZD|High: $9,783 NZD|Avg: $5,097 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
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 11$3,555 NZD
Retailer 14$3,761 NZD
Retailer 2$4,189 NZD
Retailer 7$4,319 NZD
Retailer 9$4,364 NZD
Retailer 4$4,456 NZD
Retailer 15$4,521 NZD
Retailer 5$4,679 NZD
Retailer 19$4,679 NZD
Retailer 3$4,894 NZD
Retailer 16$4,903 NZD
Retailer 10$4,932 NZD
Retailer 8$5,242 NZD
Retailer 6$5,399 NZD
Retailer 12$5,567 NZD
Retailer 18$5,679 NZD
Retailer 13$5,800 NZD
Retailer 17$8,240 NZD
NZ Jewellers$9,783 NZD

23 data points across 19 retailers

16 retailers$4,189 NZD to $5,567 NZD

Retailer 1
-
$3,555 NZD
Price last confirmed 17 days ago
Retailer 2
-
$3,761 NZD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$4,189 NZD
View
B+
Retailer 4
-
$4,448 NZD
View
Retailer 5
-
$4,679 NZD
View
Price last confirmed 19 days ago
Retailer 6
-
$4,679 NZD
View
Price last confirmed 21 days ago
Retailer 7
-
$4,894 NZD
View
Price last confirmed 22 days ago
Retailer 8
-
$4,903 NZD
View
Price last confirmed 18 days ago
Retailer 9
-
$4,932 NZD
View
Price last confirmed 19 days ago
Retailer 10
-
$4,995 NZD
View
Price last confirmed 18 days ago
Retailer 11
-
$5,242 NZD
View
Price last confirmed 30 days ago
Retailer 12
-
$5,399 NZD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$5,567 NZD
View
Retailer 14
-
$5,679 NZD
View
Price last confirmed 20 days ago
Retailer 15
-
$8,240 NZD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
bc8e1558-567d-489b-8947-d2d437791496 · Oct 17
$9,783 NZD
$5,423 USD
View
Price last confirmed 20 days ago
15 more retailers have this diamond
Prices start from $4,189 NZDSave up to $1,378 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
$4,189 NZD