CaratHunter
Plans
Heart|Natural|GIA

1.00ct I SI2 Heart Natural Diamond

VG • I/SI2 • GIA 1335609275

Certificate GIA 1335609275

Diamond specifications and retailer prices

From £1,252 GBP
As of November 6, 2026
Save £2,348 GBP (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,600 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1335609275. Listed at 13 retailers as of November 5, 2026, with prices from £1,252 to £3,600, a £2,348 spread on the same certified stone. NZ Jewellers lists it at £3,600. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1335609275
Dimensions6.88 × 5.75 × 4.23 mm
L/W Ratio1.20
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
6.88 mm5.75 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1335609275
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 61.5%

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: £3,600 GBP|Low: £1,233 GBP|High: £3,600 GBP|Avg: £1,754 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 10£1,252 GBP
Retailer 5£1,311 GBP
Retailer 15£1,362 GBP
Retailer 2£1,451 GBP
Retailer 12£1,476 GBP
Retailer 13£1,476 GBP
Retailer 11£1,544 GBP
Retailer 3£1,579 GBP
Retailer 8£1,603 GBP
Retailer 4£1,666 GBP
Retailer 14£1,703 GBP
Retailer 6£1,779 GBP
Retailer 7£1,963 GBP
Retailer 9£2,578 GBP
NZ Jewellers£3,600 GBP

30 data points across 15 retailers

13 retailers£1,252 GBP to £3,600 GBP

B+
Cheapest Retailer
-
£1,252 GBP
B+
Retailer 2
-
£1,333 GBP
View
B+
Retailer 3
-
£1,362 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,451 GBP
View
Retailer 5
-
£1,476 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£1,476 GBP
View
B
Retailer 7
-
£1,544 GBP
View
B
Retailer 8
-
£1,579 GBP
View
B
Retailer 9
-
£1,603 GBP
View
B
Retailer 10
-
£1,666 GBP
View
B
Retailer 11
-
£1,703 GBP
View
B
Retailer 12
-
£2,578 GBP
View
Most Expensive
C
NZ Jewellers
c2395fe4-1c86-4075-ae0e-fb7f2779a01d · Nov 5
£3,600 GBP
$4,819 USD
View
12 more retailers have this diamond
Prices start from £1,252 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 Heart
£1,252 GBP