Round|Natural|GIA

3.06ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 3555403959

Certificate GIA 3555403959

Diamond specifications and retailer prices

From $25,761 USD
CA$35,780 CAD
As of October 30, 2026
Save $16,537 USD (39%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $42,299 USD at MOH London · As of November 1, 2026
View at MOH London

About this 3.06ct natural round diamond

This 3.06ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555403959. Listed at 20 retailers as of October 30, 2026, with prices from $25,761 to $42,299, a $16,537 spread on the same certified stone. MOH London lists it at $42,299. 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

3.06
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3555403959
Dimensions9.37 × 9.30 × 5.70 mm
L/W Ratio1.01
Star length50%
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
9.37 mm9.30 mm3.06 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555403959
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

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 30
Current: $42,299 USD|Low: $25,761 USD|High: $44,666 USD|Avg: $31,055 USD|-5.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 10$25,761 USD
Retailer 13$25,923 USD
Retailer 12$27,540 USD
Retailer 2$27,605 USD
Retailer 3$28,244 USD
Retailer 7$28,410 USD
Retailer 8$28,593 USD
Retailer 15$28,642 USD
Retailer 4$30,310 USD
Retailer 5$31,192 USD
Retailer 16$31,350 USD
Retailer 14$31,946 USD
Retailer 9$32,164 USD
Retailer 11$32,233 USD
Retailer 6$35,868 USD
MOH London$42,299 USD

28 data points across 16 retailers

20 retailers$25,761 USD to $42,299 USD

B+
Cheapest Retailer
-
$25,761 USD
CA$35,780 CAD
B+
Retailer 2
-
$25,923 USD
View
B+
Retailer 3
-
$27,540 USD
View
B+
Retailer 4
-
$27,605 USD
£21,736 GBP
View
B+
Retailer 5
-
$28,213 USD
View
Retailer 6
-
$28,244 USD
A$43,453 AUD
View
Price last confirmed 32 days ago
Retailer 7
-
$28,410 USD
View
Price last confirmed 23 days ago
B
Retailer 8
-
$28,642 USD
View
Retailer 9
-
$29,436 USD
View
Price last confirmed 47 days ago
Retailer 10
-
$29,436 USD
View
Price last confirmed 35 days ago
Retailer 11
-
$31,350 USD
£24,685 GBP
View
Price last confirmed 24 days ago
B
Retailer 12
-
$31,946 USD
View
B
Retailer 13
-
$32,164 USD
€30,632 EUR
View
B
Retailer 14
-
$32,233 USD
View
Retailer 15
-
$32,752 USD
View
Price last confirmed 32 days ago
Retailer 16
-
$33,792 USD
View
Price last confirmed 33 days ago
Retailer 17
-
$35,092 USD
View
Price last confirmed 46 days ago
Retailer 18
-
$35,092 USD
View
Price last confirmed 33 days ago
Retailer 19
-
$35,868 USD
ZAR 579,454 ZAR
View
Price last confirmed 36 days ago
Most Expensive
B
MOH London
5D0E4A8E8 · Nov 1
$42,299 USD
£33,306 GBP
View
19 more retailers have this diamond
Prices start from $25,761 USDSave up to $16,537 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+
3.06ct Round
$25,761 USD