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Marquise|Natural|GIA

3.06ct K SI1 Marquise Natural Diamond

ID • K/SI1 • GIA 1548741088

Certificate GIA 1548741088

Diamond specifications and retailer prices

From £19,619 GBP
As of November 6, 2026
Save £6,343 GBP (24%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £25,961 GBP at Cape Diamonds · As of November 6, 2026
View at Cape Diamonds

About this 3.06ct natural marquise diamond

This 3.06ct natural marquise sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1548741088. Listed at 10 retailers as of November 6, 2026, with prices from £19,619 to £25,961, a £6,343 spread on the same certified stone. Cape Diamonds lists it at £25,961. 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
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1548741088
Dimensions14.03 × 7.61 × 4.71 mm
L/W Ratio1.84
Culet sizeNone
Top View
14.03 mm7.61 mm3.06 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1548741088
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: 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: Nov 6
Current: £25,961 GBP|Low: £17,929 GBP|High: £25,961 GBP|Avg: £21,900 GBP|+2.3%
Cape Diamonds
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
Retailer 17
November 6, 2026
Retailer 4£17,929 GBP
Retailer 7£18,359 GBP
Retailer 3£19,619 GBP
Retailer 5£20,165 GBP
Retailer 16£20,706 GBP
Retailer 11£21,006 GBP
Retailer 13£21,174 GBP
Retailer 8£21,556 GBP
Retailer 12£21,846 GBP
Retailer 9£22,426 GBP
Retailer 14£22,608 GBP
Retailer 2£22,686 GBP
Retailer 6£23,646 GBP
Retailer 17£24,722 GBP
Retailer 10£24,955 GBP
Retailer 15£25,216 GBP
Cape Diamonds£25,961 GBP

5 data points across 17 retailers

10 retailers£19,619 GBP to £25,961 GBP

B+
Cheapest Retailer
-
£19,619 GBP
B+
Retailer 2
-
£21,006 GBP
View
B+
Retailer 3
-
£21,174 GBP
View
B+
Retailer 4
-
£21,556 GBP
View
B+
Retailer 5
-
£21,846 GBP
View
B
Retailer 6
-
£22,608 GBP
View
B
Retailer 7
-
£22,686 GBP
View
B
Retailer 8
-
£24,955 GBP
View
B
Retailer 9
-
£25,216 GBP
View
Most Expensive
B
Cape Diamonds
cert_1548741088 · Nov 6
£25,961 GBP
ZAR 564,483 ZAR
View
9 more retailers have this diamond
Prices start from £19,619 GBPSave up to £6,343 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 Marquise
£19,619 GBP