Round|Natural|GIA

4.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6545955320

Certificate GIA 6545955320

Diamond specifications and retailer prices

From €43,834 EUR
$48,972 USD
As of October 31, 2026
Save €35,653 EUR (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €79,487 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 4.01ct natural round diamond

This 4.01ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545955320. Listed at 16 retailers as of October 29, 2026, with prices from €43,834 to €79,487, a €35,653 spread on the same certified stone. MOH London lists it at €79,487. 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

4.01
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545955320
Dimensions10.11 × 10.18 × 6.26 mm
L/W Ratio1.01
Top View
10.11 mm10.18 mm4.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545955320
Side View
Table 62.0%Crown 33.5°Girdle: MediumPavilion 41.8°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €79,487 EUR|Low: €43,376 EUR|High: €80,017 EUR|Avg: €52,910 EUR|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7€43,834 EUR
Retailer 5€48,442 EUR
Retailer 8€49,102 EUR
Retailer 4€49,512 EUR
Retailer 6€50,345 EUR
Retailer 3€50,669 EUR
Retailer 9€52,479 EUR
Retailer 2€59,314 EUR
MOH London€79,487 EUR

38 data points across 9 retailers

16 retailers€43,834 EUR to €79,487 EUR

B+
Cheapest Retailer
-
€43,834 EUR
$48,972 USD
B+
Retailer 2
-
€45,851 EUR
$51,225 USD
View
B+
Retailer 3
-
€46,401 EUR
$51,840 USD
View
B+
Retailer 4
-
€47,432 EUR
CA$73,599 CAD
View
Retailer 5
-
€48,442 EUR
A$83,262 AUD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
€49,102 EUR
$54,857 USD
View
B+
Retailer 7
-
€49,512 EUR
$55,315 USD
View
Final sale: no returns
B+
Retailer 8
-
€50,345 EUR
$56,246 USD
View
B+
Retailer 9
-
€50,669 EUR
£44,573 GBP
View
B+
Retailer 10
-
€52,375 EUR
$58,514 USD
View
B+
Retailer 11
-
€52,479 EUR
$58,630 USD
View
B+
Retailer 12
-
€52,479 EUR
$58,630 USD
View
B
Retailer 13
-
€54,225 EUR
$60,580 USD
View
B
Retailer 14
-
€55,240 EUR
$61,714 USD
View
B+
Retailer 15
-
€59,314 EUR
View
Most Expensive
B
MOH London
BD80FF120 · Oct 29
€79,487 EUR
£69,924 GBP
View
15 more retailers have this diamond
Prices start from €43,834 EURSave up to €35,653 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.

B+
4.01ct Round
€43,834 EUR