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Round|Natural|GIA

1.33ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7561568121

Certificate GIA 7561568121

Diamond specifications and retailer prices

From £2,083 GBP
As of November 6, 2026
Save £2,468 GBP (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,551 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 7561568121. Listed at 12 retailers as of November 5, 2026, with prices from £2,083 to £4,551, a £2,468 spread on the same certified stone. NZ Jewellers lists it at £4,551. 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
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7561568121
Dimensions7.00 × 7.03 × 4.38 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Pinpoint
Top View
7.00 mm7.03 mm1.33 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7561568121
Side View
Table 56.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.4%

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 6
Current: £4,551 GBP|Low: £2,081 GBP|High: £4,551 GBP|Avg: £2,630 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£2,083 GBP
Retailer 10£2,095 GBP
Retailer 3£2,177 GBP
Retailer 11£2,177 GBP
Retailer 12£2,261 GBP
Retailer 5£2,291 GBP
Retailer 4£2,512 GBP
Retailer 8£2,529 GBP
Retailer 6£2,538 GBP
Retailer 7£2,657 GBP
Retailer 9£3,630 GBP
NZ Jewellers£4,551 GBP

13 data points across 12 retailers

12 retailers£2,083 GBP to £4,551 GBP

A
Cheapest Retailer
-
£2,083 GBP
B+
Retailer 2
-
£2,095 GBP
View
Retailer 3
-
£2,177 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£2,177 GBP
View
B+
Retailer 5
-
£2,261 GBP
View
B+
Retailer 6
-
£2,291 GBP
View
B+
Retailer 7
-
£2,512 GBP
View
B+
Retailer 8
-
£2,529 GBP
View
B+
Retailer 9
-
£2,538 GBP
View
B
Retailer 10
-
£2,657 GBP
View
B
Retailer 11
-
£3,630 GBP
View
Most Expensive
B
NZ Jewellers
318925d1-9218-4b2b-8a46-aa1e9a5821c1 · Nov 5
£4,551 GBP
$6,125 USD
View
11 more retailers have this diamond
Prices start from £2,083 GBPSave up to £2,468 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
1.33ct Round
£2,083 GBP