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Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 2434664388

Certificate GIA 2434664388

Diamond specifications and retailer prices

From $1,617 AUD
As of November 6, 2026
Save $2,178 AUD (57%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $3,795 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2434664388. Listed at 6 retailers as of November 4, 2026, with prices from $1,617 to $3,795, a $2,178 spread on the same certified stone. MOH London lists it at $3,795. 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

1.00
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2434664388
Dimensions6.39 × 6.35 × 4.02 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.39 mm6.35 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2434664388
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,795 AUD|Low: $1,617 AUD|High: $4,294 AUD|Avg: $2,623 AUD|-11.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$1,617 AUD
Retailer 5$2,021 AUD
Retailer 3$2,386 AUD
Retailer 4$2,948 AUD
MOH London$3,795 AUD

41 data points across 5 retailers

6 retailers$1,617 AUD to $3,795 AUD

A
Cheapest Retailer
-
$1,617 AUD
A
Retailer 2
-
$2,021 AUD
View
A
Retailer 3
-
$2,156 AUD
View
A
Retailer 4
-
$2,386 AUD
View
B+
Retailer 5
-
$2,948 AUD
View
Most Expensive
B
MOH London
3B97334D2 · Nov 4
$3,795 AUD
£2,092 GBP
View
5 more retailers have this diamond
Prices start from $1,617 AUDSave up to $2,178 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.

A
1.00ct Round
$1,617 AUD