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Round|Natural|GIA

1.40ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2546854720

Certificate GIA 2546854720

Diamond specifications and retailer prices

From $4,695 AUD
As of November 6, 2026
Save $3,490 AUD (43%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,550 AUD at NZ Jewellers · As of September 28, 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 2546854720. Listed at 11 retailers as of November 4, 2026, with a 74% 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

1.40
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546854720
Dimensions7.07 × 7.10 × 4.45 mm
L/W Ratio1.00
Star length50%
Top View
7.07 mm7.10 mm1.40 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546854720
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.8%

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 6
Current: $4,695 AUD|Low: $4,693 AUD|High: $8,305 AUD|Avg: $5,742 AUD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$4,695 AUD
Retailer 6$4,721 AUD
Retailer 2$5,047 AUD
Retailer 4$5,708 AUD
Retailer 3$5,990 AUD
Retailer 5$8,185 AUD

39 data points across 6 retailers

11 retailers$4,695 AUD to $8,185 AUD

B+
Cheapest Retailer
-
$4,695 AUD
B+
Retailer 2
-
$4,721 AUD
View
Retailer 3
-
$4,907 AUD
View
Price last confirmed 29 days ago
Retailer 4
-
$4,907 AUD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$5,047 AUD
View
Retailer 6
-
$5,095 AUD
View
Price last confirmed 38 days ago
Retailer 7
-
$5,663 AUD
View
Price last confirmed 38 days ago
B+
Retailer 8
-
$5,708 AUD
View
B
Retailer 9
-
$5,990 AUD
View
B
Retailer 10
-
$8,185 AUD
View
Most Expensive
NZ Jewellers
07d0b952-9abc-42a1-8a46-f01b8812d10e · Sep 28
$8,550 AUD
$5,985 USD
View
Price last confirmed 39 days ago
10 more retailers have this diamond
Prices start from $4,695 AUDSave up to $3,490 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
$4,695 AUD