Round|Natural|GIA

4.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6545955320

Certificate GIA 6545955320

Diamond specifications and retailer prices

From $48,972 USD
As of October 31, 2026
Save $39,831 USD (45%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $88,803 USD 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 $48,972 to $88,803, a $39,831 spread on the same certified stone. MOH London lists it at $88,803. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $88,803 USD|Low: $48,460 USD|High: $89,395 USD|Avg: $59,226 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 7$48,972 USD
Retailer 5$54,120 USD
Retailer 8$54,857 USD
Retailer 4$55,315 USD
Retailer 6$56,246 USD
Retailer 2$61,265 USD
Retailer 3$66,266 USD
MOH London$88,803 USD

39 data points across 8 retailers

16 retailers$48,972 USD to $88,803 USD

B+
Cheapest Retailer
-
$48,972 USD
B+
Retailer 2
-
$51,225 USD
View
B+
Retailer 3
-
$51,840 USD
View
B+
Retailer 4
-
$52,992 USD
CA$73,599 CAD
View
Retailer 5
-
$54,120 USD
A$83,262 AUD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
$54,857 USD
View
B+
Retailer 7
-
$55,315 USD
View
Final sale: no returns
B+
Retailer 8
-
$56,246 USD
View
B+
Retailer 9
-
$58,514 USD
View
B+
Retailer 10
-
$58,630 USD
View
B+
Retailer 11
-
$58,630 USD
View
B
Retailer 12
-
$60,580 USD
View
B
Retailer 13
-
$61,265 USD
£48,240 GBP
View
B
Retailer 14
-
$61,714 USD
View
B+
Retailer 15
-
$66,266 USD
€63,110 EUR
View
Most Expensive
B
MOH London
BD80FF120 · Oct 29
$88,803 USD
£69,924 GBP
View
15 more retailers have this diamond
Prices start from $48,972 USDSave up to $39,831 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.

B+
4.01ct Round
$48,972 USD