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Round|Natural|GIA

3.03ct K SI2 Round Natural Diamond

EX • K/SI2

Diamond specifications and retailer prices

From $17,707 USD
As of November 4, 2026
Save $6,154 USD (26%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $23,861 USD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.03ct natural round diamond

This 3.03ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 5 retailers as of November 4, 2026, with prices from $17,707 to $23,861, a $6,154 spread on the same certified stone. The Diamond Guys lists it at $23,861. 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

3.03
Carat
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.15 × 9.22 × 5.74 mm
L/W Ratio1.01
Top View
9.15 mm9.22 mm3.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $17,707 USD|Low: $17,707 USD|High: $30,255 USD|Avg: $22,854 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
The Diamond Guys
October 29, 2026
Retailer 1$17,707 USD
Retailer 3$20,895 USD
Retailer 2$21,393 USD
Retailer 5$21,795 USD
Retailer 6$22,633 USD
The Diamond Guys$23,861 USD
Retailer 4$30,255 USD

6 data points across 7 retailers

5 retailers$17,707 USD to $23,861 USD

A
Cheapest Retailer
-
$17,707 USD
B+
Retailer 2
-
$20,895 USD
View
B+
Retailer 3
-
$21,393 USD
View
B+
Retailer 4
-
$22,594 USD
View
Most Expensive
B
The Diamond Guys
1972714099 · Nov 6
$23,861 USD
View
4 more retailers have this diamond
Prices start from $17,707 USDSave up to $6,154 USD

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
3.03ct Round
$17,707 USD