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Heart|Natural|GIA

1.00ct K SI1 Heart Natural Diamond

GD • K/SI1 • GIA 7543188396

Certificate GIA 7543188396

Diamond specifications and retailer prices

From £672 GBP
As of November 6, 2026
Save £405 GBP (38%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,077 GBP at GemTrove · As of November 6, 2026
View at GemTrove

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 7543188396. Listed at 7 retailers as of November 6, 2026, with prices from £672 to £1,077, a £405 spread on the same certified stone. GemTrove lists it at £1,077. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7543188396
Dimensions6.24 × 7.01 × 3.89 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Cloud, Feather, Knot, Crystal, Needle
Top View
6.24 mm7.01 mm1.00 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7543188396
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 55.6%

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: £1,077 GBP|Low: £656 GBP|High: £1,077 GBP|Avg: £828 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3£672 GBP
Retailer 5£677 GBP
Retailer 4£716 GBP
Retailer 2£755 GBP
Retailer 7£764 GBP
Retailer 6£831 GBP
GemTrove£1,077 GBP

42 data points across 7 retailers

7 retailers£672 GBP to £1,077 GBP

A
Cheapest Retailer
-
£672 GBP
A
Retailer 2
-
£677 GBP
View
Final sale: no returns
A
Retailer 3
-
£716 GBP
View
B+
Retailer 4
-
£755 GBP
View
B+
Retailer 5
-
£764 GBP
View
B+
Retailer 6
-
£831 GBP
View
Most Expensive
B+
GemTrove
GT-N-01267637-98 · Nov 6
£1,077 GBP
A$2,218 AUD
View
6 more retailers have this diamond
Prices start from £672 GBPSave up to £405 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
1.00ct Heart
£672 GBP