Radiant|Natural|GIA

4.05ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2231098521

Certificate GIA 2231098521

Diamond specifications and retailer prices

From €47,398 EUR
$52,953 USD
As of October 31, 2026
Save €12,542 EUR (21%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €59,940 EUR at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 4.05ct natural radiant diamond

This 4.05ct natural radiant sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231098521. Listed at 7 retailers as of October 31, 2026, with prices from €47,398 to €59,940, a €12,542 spread on the same certified stone. 77 Diamonds lists it at €59,940. 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

4.05
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231098521
Dimensions10.41 × 7.76 × 5.56 mm
L/W Ratio1.34
Top View
10.41 mm7.76 mm4.05 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231098521
Side View
Table 63.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.7%

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: Oct 31
Current: €59,940 EUR|Low: €47,398 EUR|High: €60,461 EUR|Avg: €52,679 EUR|+1.5%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3€47,398 EUR
Retailer 2€49,704 EUR
77 Diamonds€59,940 EUR

45 data points across 3 retailers

7 retailers€47,398 EUR to €59,940 EUR

A
Cheapest Retailer
-
€47,398 EUR
$52,953 USD
A
Retailer 2
-
€49,704 EUR
₹5,288,585 INR
View
B+
Retailer 3
-
€50,358 EUR
$56,261 USD
View
B+
Retailer 4
-
€51,069 EUR
$57,055 USD
View
B+
Retailer 5
-
€51,091 EUR
$57,079 USD
View
B+
Retailer 6
-
€52,331 EUR
A$89,945 AUD
View
Most Expensive
B+
77 Diamonds
RADMBMTXBPPWE · Nov 2
€59,940 EUR
£52,729 GBP
View
6 more retailers have this diamond
Prices start from €47,398 EURSave up to €12,542 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
4.05ct Radiant
€47,398 EUR