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Round|Natural|GIA

0.90ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 5536505721

Certificate GIA 5536505721

Diamond specifications and retailer prices

From £561 GBP
As of November 6, 2026
Save £1,681 GBP (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £2,242 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5536505721. Listed at 17 retailers as of November 5, 2026, with prices from £561 to £2,242, a £1,681 spread on the same certified stone. NZ Jewellers lists it at £2,242. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5536505721
Dimensions6.01 × 5.96 × 3.87 mm
L/W Ratio1.01
Top View
6.01 mm5.96 mm0.90 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5536505721
Side View
Table 56.0%Crown 38.5°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 65.0%

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: £2,242 GBP|Low: £551 GBP|High: £2,242 GBP|Avg: £946 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 17£561 GBP
Retailer 13£587 GBP
Retailer 9£598 GBP
Retailer 4£648 GBP
Retailer 15£650 GBP
Retailer 5£655 GBP
Retailer 3£672 GBP
Retailer 16£682 GBP
Retailer 7£708 GBP
Retailer 8£747 GBP
Retailer 12£824 GBP
Retailer 6£846 GBP
Retailer 10£924 GBP
Retailer 11£1,047 GBP
Retailer 14£1,308 GBP
Retailer 2£1,698 GBP
NZ Jewellers£2,242 GBP

30 data points across 17 retailers

17 retailers£561 GBP to £2,242 GBP

A
Cheapest Retailer
-
£561 GBP
A
Retailer 2
-
£587 GBP
View
B+
Retailer 3
-
£598 GBP
View
Final sale: no returns
B+
Retailer 4
-
£648 GBP
View
A
Retailer 5
-
£650 GBP
View
B+
Retailer 6
-
£655 GBP
View
B+
Retailer 7
-
£672 GBP
View
A
Retailer 8
-
£682 GBP
View
B+
Retailer 9
-
£708 GBP
View
B+
Retailer 10
-
£747 GBP
View
B+
Retailer 11
-
£824 GBP
View
B+
Retailer 12
-
£846 GBP
View
B+
Retailer 13
-
£924 GBP
View
B+
Retailer 14
-
£1,047 GBP
View
B
Retailer 15
-
£1,308 GBP
View
B
Retailer 16
-
£1,698 GBP
View
Most Expensive
C
NZ Jewellers
49d693f6-2535-4023-9e32-4d87ac6efd3f · Nov 5
£2,242 GBP
$3,018 USD
View
16 more retailers have this diamond
Prices start from £561 GBPSave up to £1,681 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
0.90ct Round
£561 GBP