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Round|Natural|GIA

1.00ct K SI1 Round Natural Diamond

VG • K/SI1 • GIA 2215194753

Certificate GIA 2215194753

Diamond specifications and retailer prices

From £1,169 GBP
As of November 6, 2026
Save £2,348 GBP (67%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,517 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2215194753. Listed at 18 retailers as of November 5, 2026, with prices from £1,169 to £3,517, a £2,348 spread on the same certified stone. NZ Jewellers lists it at £3,517. 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

1.00
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2215194753
Dimensions6.30 × 6.24 × 4.01 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Culet sizeNone
Top View
6.30 mm6.24 mm1.00 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2215194753
Side View
Table 56.0%Crown 36.5°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 64.0%

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: Nov 6
Current: £1,557 GBP|Low: £1,169 GBP|High: £2,557 GBP|Avg: £1,673 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£1,169 GBP
Retailer 7£1,211 GBP
Retailer 2£1,352 GBP
Retailer 9£1,366 GBP
Retailer 1£1,557 GBP
Retailer 3£1,698 GBP
Retailer 5£1,759 GBP
Retailer 4£1,826 GBP
Retailer 8£2,068 GBP
Retailer 6£2,519 GBP

42 data points across 10 retailers

18 retailers£1,169 GBP to £3,517 GBP

B+
Cheapest Retailer
-
£1,169 GBP
B+
Retailer 2
-
£1,175 GBP
View
B+
Retailer 3
-
£1,190 GBP
View
B+
Retailer 4
-
£1,211 GBP
View
B+
Retailer 5
-
£1,226 GBP
View
B+
Retailer 6
-
£1,271 GBP
View
Retailer 7
-
£1,306 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,306 GBP
View
B+
Retailer 9
-
£1,352 GBP
View
B+
Retailer 10
-
£1,366 GBP
View
B+
Retailer 11
-
£1,508 GBP
View
B+
Retailer 12
-
£1,557 GBP
View
B
Retailer 13
-
£1,698 GBP
View
B
Retailer 14
-
£1,759 GBP
View
B
Retailer 15
-
£1,826 GBP
View
B
Retailer 16
-
£2,068 GBP
View
B
Retailer 17
-
£2,519 GBP
View
Most Expensive
C
NZ Jewellers
787f9ccc-7ed7-4169-8f0d-7e071e8eca8a · Nov 5
£3,517 GBP
$4,734 USD
View
17 more retailers have this diamond
Prices start from £1,169 GBPSave up to £2,348 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+
1.00ct Round
£1,169 GBP