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1.33ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2197743047

Certificate GIA 2197743047

Diamond specifications and retailer prices

From £2,671 GBP
As of November 1, 2026
Save £2,546 GBP (49%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £5,217 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.33ct natural round diamond

This 1.33ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2197743047. Listed at 5 retailers as of November 1, 2026, with prices from £2,671 to £5,217, a £2,546 spread on the same certified stone. MOH London lists it at £5,217. 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

1.33
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2197743047
Dimensions7.15 × 7.12 × 4.27 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Top View
7.15 mm7.12 mm1.33 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2197743047
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £5,217 GBP|Low: £2,671 GBP|High: £5,295 GBP|Avg: £3,557 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£2,671 GBP
Retailer 6£2,681 GBP
Retailer 2£3,306 GBP
Retailer 3£3,688 GBP
Retailer 5£3,716 GBP
MOH London£5,217 GBP

42 data points across 6 retailers

5 retailers£2,671 GBP to £5,217 GBP

B+
Cheapest Retailer
-
£2,671 GBP
B
Retailer 2
-
£3,306 GBP
View
B
Retailer 3
-
£3,688 GBP
View
Retailer 4
-
£3,716 GBP
View
Price last confirmed 14 days ago
Most Expensive
B
MOH London
E32595005 · Nov 4
£5,217 GBP
View
4 more retailers have this diamond
Prices start from £2,671 GBPSave up to £2,546 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+
1.33ct Round
£2,671 GBP