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Round|Natural|GIA

3.40ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6542848683

Certificate GIA 6542848683

Diamond specifications and retailer prices

From £17,394 GBP
As of November 4, 2026
Save £17,685 GBP (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £35,080 GBP at With Clarity · As of November 4, 2026
View at With Clarity

About this 3.4ct natural round diamond

This 3.4ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542848683. Listed at 5 retailers as of November 4, 2026, with prices from £17,394 to £35,080, a £17,685 spread on the same certified stone. With Clarity lists it at £35,080. 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

3.40
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6542848683
Dimensions9.48 × 9.55 × 5.97 mm
L/W Ratio1.01
Top View
9.48 mm9.55 mm3.40 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542848683
Side View
Table 57.0%Crown 35.5°GirdlePavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £21,981 GBP|Low: £17,394 GBP|High: £78,263 GBP|Avg: £31,137 GBP|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
November 5, 2026
Retailer 4£17,394 GBP
Retailer 5£19,487 GBP
Retailer 3£21,441 GBP
Retailer 1£21,981 GBP
Retailer 2£23,012 GBP
With Clarity£35,080 GBP
Retailer 6£78,263 GBP

17 data points across 7 retailers

5 retailers£17,394 GBP to £35,080 GBP

A
Cheapest Retailer
-
£17,394 GBP
B+
Retailer 2
-
£21,441 GBP
View
B+
Retailer 3
-
£21,981 GBP
View
B
Retailer 4
-
£23,012 GBP
View
Most Expensive
B
With Clarity
6542848683 · Nov 4
£35,080 GBP
$47,214 USD
View
4 more retailers have this diamond
Prices start from £17,394 GBPSave up to £17,685 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.

A
3.40ct Round
£17,394 GBP