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Round|Natural|GIA

3.43ct I SI1 Round Natural Diamond

ID • I/SI1 • GIA 02

Certificate GIA 02

Diamond specifications and retailer prices

From £30,544 GBP
$40,926 USD
As of October 30, 2026
Save £6,214 GBP (17%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £36,758 GBP at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 3.43ct natural round diamond

This 3.43ct 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. Listed at 4 retailers as of October 30, 2026, with prices from £30,544 to £36,758, a £6,214 spread on the same certified stone. Diamond Exchange Canada lists it at £36,758. 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

3.43
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 02
Dimensions9.52 × 9.59 × 5.99 mm
L/W Ratio1.01
Top View
9.52 mm9.59 mm3.43 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 02
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

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: Oct 30
Current: £36,758 GBP|Low: £30,544 GBP|High: £36,758 GBP|Avg: £33,710 GBP
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£30,544 GBP
Retailer 4£32,513 GBP
Retailer 3£35,023 GBP
Diamond Exchange Canada£36,758 GBP

2 data points across 4 retailers

4 retailers£30,544 GBP to £36,758 GBP

B+
Cheapest Retailer
-
£30,544 GBP
$40,926 USD
B
Retailer 2
-
£32,513 GBP
$43,564 USD
View
B
Retailer 3
-
£35,023 GBP
$46,927 USD
View
Most Expensive
B
Diamond Exchange Canada
1989722173 · Oct 30
£36,758 GBP
CA$68,405 CAD
View
3 more retailers have this diamond
Prices start from £30,544 GBPSave up to £6,214 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+
3.43ct Round
£30,544 GBP