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Round|Natural|GIA

0.90ct K IF Round Natural Diamond

EX • K/IF • GIA 6551658468

Certificate GIA 6551658468

Diamond specifications and retailer prices

From £1,065 GBP
As of November 1, 2026
Save £1,780 GBP (63%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,151 GBP at NZ Jewellers · As of October 14, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6551658468. Listed at 20 retailers as of November 1, 2026, with a 167% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.90
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551658468
Dimensions6.13 × 6.18 × 3.88 mm
L/W Ratio1.01
Top View
6.13 mm6.18 mm0.90 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551658468
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 63.0%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £1,577 GBP|Low: £1,065 GBP|High: £2,853 GBP|Avg: £1,703 GBP|+9.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4£1,065 GBP
Retailer 3£1,471 GBP
Retailer 5£1,523 GBP
Retailer 13£1,543 GBP
Retailer 2£1,544 GBP
Retailer 1£1,577 GBP
Retailer 12£1,638 GBP
Retailer 6£1,823 GBP
Retailer 7£1,857 GBP
Retailer 8£1,868 GBP
Retailer 10£2,066 GBP
Retailer 9£2,385 GBP
Retailer 11£2,845 GBP

28 data points across 13 retailers

20 retailers£1,065 GBP to £2,845 GBP

A
Cheapest Retailer
-
£1,065 GBP
B+
Retailer 2
-
£1,471 GBP
View
Retailer 3
-
£1,507 GBP
View
Price last confirmed 23 days ago
Retailer 4
-
£1,523 GBP
View
Price last confirmed 10 days ago
Retailer 5
-
£1,537 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£1,543 GBP
View
B+
Retailer 7
-
£1,544 GBP
View
B+
Retailer 8
-
£1,577 GBP
View
B+
Retailer 9
-
£1,638 GBP
View
Retailer 10
-
£1,640 GBP
View
Price last confirmed 38 days ago
Retailer 11
-
£1,658 GBP
View
Price last confirmed 60 days ago
Retailer 12
-
£1,739 GBP
View
Price last confirmed 24 days ago
B
Retailer 13
-
£1,823 GBP
View
B
Retailer 14
-
£1,857 GBP
View
B+
Retailer 15
-
£1,868 GBP
View
Retailer 16
-
£1,914 GBP
View
Price last confirmed 60 days ago
B+
Retailer 17
-
£2,066 GBP
View
B
Retailer 18
-
£2,385 GBP
View
B
Retailer 19
-
£2,845 GBP
View
Most Expensive
NZ Jewellers
e56f3389-906d-4a22-8bac-09f99b847c61 · Oct 14
£3,151 GBP
$4,241 USD
View
Price last confirmed 23 days ago
19 more retailers have this diamond
Prices start from £1,065 GBPSave up to £1,780 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
£1,065 GBP