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Heart|Natural|GIA

1.00ct H SI1 Heart Natural Diamond

ID • H/SI1 • GIA 2235617262

Certificate GIA 2235617262

Diamond specifications and retailer prices

From £1,060 GBP
HK$11,100 HKD
As of November 2, 2026
Save £2,096 GBP (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,416 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235617262. Listed at 21 retailers as of October 28, 2026, with a 198% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2235617262
Dimensions6.82 × 6.07 × 4.18 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
6.82 mm6.07 mm1.00 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2235617262
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.3%

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 2
Current: £1,060 GBP|Low: £1,060 GBP|High: £3,166 GBP|Avg: £1,663 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 1£1,060 GBP
Retailer 9£1,138 GBP
Retailer 8£1,284 GBP
Retailer 2£1,323 GBP
Retailer 13£1,334 GBP
Retailer 4£1,463 GBP
Retailer 3£1,488 GBP
Retailer 6£1,494 GBP
Retailer 7£1,525 GBP
Retailer 10£1,722 GBP
Retailer 5£1,840 GBP
Retailer 12£2,457 GBP
Retailer 11£3,156 GBP

33 data points across 13 retailers

21 retailers£1,060 GBP to £3,156 GBP

A
Cheapest Retailer
-
£1,060 GBP
HK$11,100 HKD
A
Retailer 2
-
£1,138 GBP
₹145,196 INR
View
A
Retailer 3
-
£1,284 GBP
$1,720 USD
View
Final sale: no returns
A
Retailer 4
-
£1,323 GBP
SGD 2,396 SGD
View
B+
Retailer 5
-
£1,334 GBP
$1,787 USD
View
B+
Retailer 6
-
£1,346 GBP
$1,804 USD
View
B+
Retailer 7
-
£1,347 GBP
$1,805 USD
View
Retailer 8
-
£1,401 GBP
$1,877 USD
View
Price last confirmed 17 days ago
Retailer 9
-
£1,401 GBP
$1,877 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
£1,463 GBP
$1,960 USD
View
Retailer 11
-
£1,465 GBP
$1,963 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
£1,479 GBP
A$3,048 AUD
View
B+
Retailer 13
-
£1,488 GBP
SGD 2,695 SGD
View
B+
Retailer 14
-
£1,494 GBP
$2,001 USD
View
B+
Retailer 15
-
£1,525 GBP
View
Retailer 16
-
£1,616 GBP
$2,165 USD
View
Price last confirmed 14 days ago
B+
Retailer 17
-
£1,722 GBP
ZAR 37,266 ZAR
View
Retailer 18
-
£1,840 GBP
A$3,794 AUD
View
Price last confirmed 27 days ago
B
Retailer 19
-
£2,457 GBP
View
B
Retailer 20
-
£3,156 GBP
View
Most Expensive
NZ Jewellers
7a0c4c76-5d1a-4396-9056-bf7ca447394e · Oct 18
£3,416 GBP
$4,577 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from £1,060 GBPSave up to £2,096 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
£1,060 GBP