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Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 6392796491

Certificate GIA 6392796491

Diamond specifications and retailer prices

From £973 GBP
As of November 6, 2026
Save £2,368 GBP (71%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,341 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6392796491. Listed at 18 retailers as of November 5, 2026, with prices from £973 to £3,341, a £2,368 spread on the same certified stone. NZ Jewellers lists it at £3,341. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6392796491
Dimensions6.17 × 6.54 × 3.88 mm
L/W Ratio1.06
Top View
6.17 mm6.54 mm1.00 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6392796491
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 59.3%

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: £973 GBP|Low: £973 GBP|High: £2,425 GBP|Avg: £1,473 GBP|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£973 GBP
Retailer 6£994 GBP
Retailer 8£1,248 GBP
Retailer 7£1,264 GBP
Retailer 2£1,346 GBP
Retailer 4£1,520 GBP
Retailer 3£1,860 GBP
Retailer 5£2,394 GBP

30 data points across 8 retailers

18 retailers£973 GBP to £3,341 GBP

A
Cheapest Retailer
-
£973 GBP
B+
Retailer 2
-
£994 GBP
View
B+
Retailer 3
-
£1,248 GBP
View
B+
Retailer 4
-
£1,256 GBP
View
B+
Retailer 5
-
£1,264 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,346 GBP
View
Retailer 7
-
£1,369 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,369 GBP
View
B+
Retailer 9
-
£1,380 GBP
View
B
Retailer 10
-
£1,433 GBP
View
B
Retailer 11
-
£1,472 GBP
View
B
Retailer 12
-
£1,491 GBP
View
B
Retailer 13
-
£1,520 GBP
View
B
Retailer 14
-
£1,580 GBP
View
B
Retailer 15
-
£1,860 GBP
View
B
Retailer 16
-
£2,394 GBP
View
C
Retailer 17
-
£2,822 GBP
View
Most Expensive
C
NZ Jewellers
84864f37-b2c8-44a7-b477-91e42a2d47fa · Nov 5
£3,341 GBP
$4,472 USD
View
17 more retailers have this diamond
Prices start from £973 GBPSave up to £2,368 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
£973 GBP