Round|Natural|GIA

3.86ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6355040137

Shape and cutting style on the report: Round brilliant

Certificate GIA 6355040137

Diamond specifications and retailer prices

From $47,200 USD
As of October 31, 2026
Save $22,643 USD (32%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $69,843 USD at Cape Diamonds · As of October 27, 2026
View at Cape Diamonds

About this 3.86ct natural round diamond

This 3.86ct 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 6355040137. Listed at 9 retailers as of October 27, 2026, with prices from $47,200 to $69,843, a $22,643 spread on the same certified stone. Cape Diamonds lists it at $69,843. 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

3.86
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6355040137
Dimensions9.97 × 9.92 × 6.23 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
9.97 mm9.92 mm3.86 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6355040137
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: $69,843 USD|Low: $46,290 USD|High: $69,843 USD|Avg: $55,289 USD|+1.6%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$46,290 USD
Retailer 7$47,200 USD
Retailer 3$49,019 USD
Retailer 5$52,528 USD
Retailer 4$58,665 USD
Retailer 2$63,450 USD
Cape Diamonds$69,843 USD

43 data points across 7 retailers

9 retailers$47,200 USD to $69,843 USD

Retailer 1
-
$46,290 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
$47,200 USD
View
B+
Retailer 3
-
$49,019 USD
₹4,668,454 INR
View
B+
Retailer 4
-
$49,638 USD
View
B
Retailer 5
-
$52,528 USD
View
Retailer 6
-
$52,528 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$58,665 USD
£46,193 GBP
View
B
Retailer 8
-
$63,450 USD
€60,429 EUR
View
Most Expensive
B
Cape Diamonds
cert_6355040137 · Oct 27
$69,843 USD
ZAR 1,128,319 ZAR
View
8 more retailers have this diamond
Prices start from $47,200 USDSave up to $22,643 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+
3.86ct Round
$47,200 USD