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Round|Natural|GIA

1.40ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2516009731

Certificate GIA 2516009731

Diamond specifications and retailer prices

From $4,921 AUD
As of November 1, 2026
Save $6,051 AUD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,972 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.4ct natural round diamond

This 1.4ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2516009731. Listed at 14 retailers as of November 1, 2026, with prices from $4,921 to $10,972, a $6,051 spread on the same certified stone. NZ Jewellers lists it at $10,972. 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

1.40
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2516009731
Dimensions7.21 × 7.15 × 4.40 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.21 mm7.15 mm1.40 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516009731
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $10,972 AUD|Low: $4,921 AUD|High: $10,972 AUD|Avg: $7,398 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$4,921 AUD
Retailer 9$5,443 AUD
Retailer 8$5,705 AUD
Retailer 2$6,270 AUD
Retailer 3$6,340 AUD
Retailer 5$7,071 AUD
Retailer 4$7,684 AUD
Retailer 6$10,002 AUD
NZ Jewellers$10,972 AUD

43 data points across 9 retailers

14 retailers$4,921 AUD to $10,972 AUD

B+
Cheapest Retailer
-
$4,921 AUD
B+
Retailer 2
-
$5,020 AUD
View
B
Retailer 3
-
$5,358 AUD
View
B
Retailer 4
-
$5,443 AUD
View
Retailer 5
-
$5,705 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$5,705 AUD
View
B+
Retailer 7
-
$5,705 AUD
View
B
Retailer 8
-
$6,270 AUD
View
B
Retailer 9
-
$6,340 AUD
View
B
Retailer 10
-
$6,583 AUD
View
B
Retailer 11
-
$7,071 AUD
View
B
Retailer 12
-
$7,684 AUD
View
B
Retailer 13
-
$10,002 AUD
View
Most Expensive
B
NZ Jewellers
521a662e-9b5b-4efb-977f-dac68c92a4a0 · Nov 5
$10,972 AUD
$7,681 USD
View
13 more retailers have this diamond
Prices start from $4,921 AUDSave up to $6,051 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+
1.40ct Round
$4,921 AUD