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Round|Natural|GIA

4.06ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5406174082

Certificate GIA 5406174082

Diamond specifications and retailer prices

From $66,668 AUD
As of November 1, 2026
Save $23,810 AUD (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $90,478 AUD at Yorxs · As of November 5, 2026
View at Yorxs

About this 4.06ct natural round diamond

This 4.06ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5406174082. Listed at 5 retailers as of November 1, 2026, with prices from $66,668 to $90,478, a $23,810 spread on the same certified stone. Yorxs lists it at $90,478. 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

4.06
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5406174082
Dimensions10.29 × 10.21 × 6.28 mm
L/W Ratio1.01
Top View
10.29 mm10.21 mm4.06 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5406174082
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.2%

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: $69,742 AUD|Low: $66,668 AUD|High: $91,356 AUD|Avg: $76,206 AUD|-1.4%
Retailer 1
Retailer 2
Yorxs
November 5, 2026
Retailer 2$66,668 AUD
Retailer 1$69,742 AUD
Yorxs$90,478 AUD

45 data points across 3 retailers

5 retailers$66,668 AUD to $90,478 AUD

B+
Cheapest Retailer
-
$66,668 AUD
B
Retailer 2
-
$69,742 AUD
View
B
Retailer 3
-
$70,124 AUD
View
B
Retailer 4
-
$84,481 AUD
View
Most Expensive
B
Yorxs
230056998 · Nov 5
$90,478 AUD
€60,322 EUR
View
4 more retailers have this diamond
Prices start from $66,668 AUDSave up to $23,810 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+
4.06ct Round
$66,668 AUD