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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 $3,000 AUD
As of November 1, 2026
Save $4,817 AUD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,817 AUD 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 $3,000 to $7,817, a $4,817 spread on the same certified stone. NZ Jewellers lists it at $7,817. 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: $3,933 AUD|Low: $3,000 AUD|High: $6,628 AUD|Avg: $4,046 AUD|+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$3,000 AUD
Retailer 9$3,058 AUD
Retailer 8$3,267 AUD
Retailer 7$3,378 AUD
Retailer 2$3,543 AUD
Retailer 10$3,640 AUD
Retailer 1$3,933 AUD
Retailer 3$4,563 AUD
Retailer 4$4,638 AUD
Retailer 5$6,533 AUD

44 data points across 10 retailers

13 retailers$3,000 AUD to $7,817 AUD

B+
Cheapest Retailer
-
$3,000 AUD
B+
Retailer 2
-
$3,058 AUD
View
B+
Retailer 3
-
$3,267 AUD
View
B
Retailer 4
-
$3,378 AUD
View
B
Retailer 5
-
$3,387 AUD
View
Retailer 6
-
$3,387 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$3,543 AUD
View
B
Retailer 8
-
$3,908 AUD
View
B
Retailer 9
-
$3,933 AUD
View
B
Retailer 10
-
$4,563 AUD
View
B
Retailer 11
-
$4,638 AUD
View
B
Retailer 12
-
$6,533 AUD
View
Most Expensive
B
NZ Jewellers
c17f7fe0-5094-48ee-a955-905dd99e7998 · Nov 5
$7,817 AUD
$5,472 USD
View
12 more retailers have this diamond
Prices start from $3,000 AUDSave up to $4,817 AUD

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
$3,000 AUD