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Heart|Natural|GIA

1.00ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6224165258

Certificate GIA 6224165258

Diamond specifications and retailer prices

From £1,146 GBP
As of November 6, 2026
Save £2,013 GBP (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,160 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6224165258. Listed at 14 retailers as of November 5, 2026, with prices from £1,146 to £3,160, a £2,013 spread on the same certified stone. NZ Jewellers lists it at £3,160. 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

1.00
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6224165258
Dimensions6.12 × 6.36 × 3.22 mm
L/W Ratio1.04
Top View
6.12 mm6.36 mm1.00 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6224165258
Side View
Table 56.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 50.6%

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: £1,759 GBP|Low: £1,146 GBP|High: £2,297 GBP|Avg: £1,481 GBP|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9£1,146 GBP
Retailer 5£1,180 GBP
Retailer 7£1,267 GBP
Retailer 8£1,345 GBP
Retailer 6£1,355 GBP
Retailer 3£1,437 GBP
Retailer 2£1,581 GBP
Retailer 1£1,759 GBP
Retailer 4£2,269 GBP

45 data points across 9 retailers

14 retailers£1,146 GBP to £3,160 GBP

B+
Cheapest Retailer
-
£1,146 GBP
B+
Retailer 2
-
£1,180 GBP
View
B+
Retailer 3
-
£1,267 GBP
View
Retailer 4
-
£1,295 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£1,295 GBP
View
B+
Retailer 6
-
£1,345 GBP
View
B+
Retailer 7
-
£1,355 GBP
View
B
Retailer 8
-
£1,397 GBP
View
B+
Retailer 9
-
£1,437 GBP
View
B
Retailer 10
-
£1,495 GBP
View
B
Retailer 11
-
£1,581 GBP
View
B
Retailer 12
-
£1,759 GBP
View
B
Retailer 13
-
£2,269 GBP
View
Most Expensive
C
NZ Jewellers
20478dd3-fd83-414a-ae2f-ed155b99fa08 · Nov 5
£3,160 GBP
$4,229 USD
View
13 more retailers have this diamond
Prices start from £1,146 GBPSave up to £2,013 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 Heart
£1,146 GBP