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Round|Natural|GIA

1.02ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1375710423

Certificate GIA 1375710423

Diamond specifications and retailer prices

From $3,736 NZD
As of November 1, 2026
Save $5,998 NZD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,734 NZD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1375710423. Listed at 13 retailers as of November 1, 2026, with prices from $3,736 to $9,734, a $5,998 spread on the same certified stone. NZ Jewellers lists it at $9,734. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1375710423
Dimensions6.51 × 6.47 × 3.99 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Clouds, pinpoints and surface graining are not shown.
Top View
6.51 mm6.47 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1375710423
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,897 NZD|Low: $3,736 NZD|High: $8,254 NZD|Avg: $5,039 NZD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$3,736 NZD
Retailer 9$3,809 NZD
Retailer 8$4,068 NZD
Retailer 7$4,207 NZD
Retailer 2$4,412 NZD
Retailer 10$4,533 NZD
Retailer 1$4,897 NZD
Retailer 3$5,682 NZD
Retailer 4$5,776 NZD
Retailer 5$8,135 NZD

44 data points across 10 retailers

13 retailers$3,736 NZD to $9,734 NZD

B+
Cheapest Retailer
-
$3,736 NZD
B+
Retailer 2
-
$3,809 NZD
View
B+
Retailer 3
-
$4,068 NZD
View
B
Retailer 4
-
$4,207 NZD
View
B
Retailer 5
-
$4,218 NZD
View
Retailer 6
-
$4,218 NZD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$4,412 NZD
View
B
Retailer 8
-
$4,867 NZD
View
B
Retailer 9
-
$4,897 NZD
View
B
Retailer 10
-
$5,682 NZD
View
B
Retailer 11
-
$5,776 NZD
View
B
Retailer 12
-
$8,135 NZD
View
Most Expensive
B
NZ Jewellers
c17f7fe0-5094-48ee-a955-905dd99e7998 · Nov 5
$9,734 NZD
$5,472 USD
View
12 more retailers have this diamond
Prices start from $3,736 NZDSave up to $5,998 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
$3,736 NZD