Round|Natural|GIA

3.00ct K SI1 Round Natural Diamond

EX • K/SI1

Diamond specifications and retailer prices

From €15,748 EUR
As of November 6, 2026
Save €5,006 EUR (24%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €25,242 EUR at NZ Jewellers · As of September 18, 2026
View at NZ Jewellers

About this 3ct natural round diamond

This 3ct 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. Listed at 10 retailers as of November 6, 2026, with a 32% 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

3.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.13 × 9.22 × 5.74 mm
L/W Ratio1.01
Top View
9.13 mm9.22 mm3.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 55.0%CrownGirdle: ThinPavilionCulet: NoneDepth 62.6%

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: €25,242 EUR|Low: €15,748 EUR|High: €25,242 EUR|Avg: €19,730 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 2€15,748 EUR
Retailer 8€17,817 EUR
Retailer 4€18,181 EUR
Retailer 3€18,607 EUR
Retailer 7€19,302 EUR
Retailer 6€20,045 EUR
Retailer 5€20,754 EUR
NZ Jewellers€25,242 EUR

3 data points across 8 retailers

10 retailers€15,748 EUR to €20,754 EUR

A
Cheapest Retailer
-
€15,748 EUR
B+
Retailer 2
-
€18,181 EUR
View
B+
Retailer 3
-
€18,607 EUR
View
Retailer 4
-
€19,302 EUR
View
Price last confirmed 56 days ago
Retailer 5
-
€19,302 EUR
View
Price last confirmed 54 days ago
Retailer 6
-
€20,045 EUR
View
Price last confirmed 50 days ago
Retailer 7
-
€20,045 EUR
View
Price last confirmed 61 days ago
B+
Retailer 8
-
€20,754 EUR
View
Retailer 9
-
€25,242 EUR
View
Price last confirmed 57 days ago
Most Expensive
NZ Jewellers
fbcfc892-9a65-4745-abd7-8d939edbbd57 · Sep 18
€25,242 EUR
$28,331 USD
View
Price last confirmed 49 days ago
9 more retailers have this diamond
Prices start from €15,748 EURSave up to €5,006 EUR

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
3.00ct Round
€15,748 EUR