Round|Natural|GIA

3.06ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2287620821

Certificate GIA 2287620821

Diamond specifications and retailer prices

From £35,251 GBP
As of November 1, 2026
Save £28,653 GBP (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £63,904 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 3.06ct natural round diamond

This 3.06ct natural round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2287620821. Listed at 19 retailers as of November 1, 2026, with prices from £35,251 to £63,904, a £28,653 spread on the same certified stone. Diamond Quarter lists it at £63,904. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2287620821
Dimensions9.33 × 9.30 × 5.74 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
9.33 mm9.30 mm3.06 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2287620821
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.7%

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: Nov 1
Current: £55,313 GBP|Low: £35,251 GBP|High: £64,784 GBP|Avg: £47,090 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8£35,251 GBP
Retailer 7£36,945 GBP
Retailer 6£37,144 GBP
Retailer 9£39,223 GBP
Retailer 3£40,376 GBP
Retailer 4£47,762 GBP
Retailer 2£52,766 GBP
Retailer 1£55,313 GBP
Retailer 5£63,841 GBP

37 data points across 9 retailers

19 retailers£35,251 GBP to £63,904 GBP

B+
Cheapest Retailer
-
£35,251 GBP
B+
Retailer 2
-
£36,945 GBP
View
B+
Retailer 3
-
£37,144 GBP
View
Retailer 4
-
£39,223 GBP
View
Price last confirmed 33 days ago
B+
Retailer 5
-
£39,679 GBP
View
B+
Retailer 6
-
£40,376 GBP
View
Retailer 7
-
£40,987 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£40,987 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
£42,694 GBP
View
Price last confirmed 17 days ago
B+
Retailer 10
-
£42,694 GBP
View
Retailer 11
-
£42,694 GBP
View
Price last confirmed 22 days ago
Retailer 12
-
£44,403 GBP
View
Price last confirmed 17 days ago
Retailer 13
-
£46,110 GBP
View
Price last confirmed 16 days ago
B
Retailer 14
-
£47,462 GBP
View
B+
Retailer 15
-
£47,762 GBP
View
B
Retailer 16
-
£52,766 GBP
View
B
Retailer 17
-
£55,313 GBP
View
B
Retailer 18
-
£63,841 GBP
View
Most Expensive
B
Diamond Quarter
3.06SI1D2221A7BDN · Nov 5
£63,904 GBP
View
18 more retailers have this diamond
Prices start from £35,251 GBPSave up to £28,653 GBP

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
£35,251 GBP