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Heart|Natural|GIA

1.09ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 1547737916

Certificate GIA 1547737916

Diamond specifications and retailer prices

From £1,300 GBP
$1,742 USD
As of October 31, 2026
Save £1,221 GBP (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,617 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.09ct natural heart diamond

This 1.09ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1547737916. Listed at 16 retailers as of October 31, 2026, with a 94% 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

1.09
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.48°
Pavilion angle42.23°
OriginNatural
Grading LabGIA
CertificateGIA 1547737916
Dimensions6.40 × 7.04 × 4.20 mm
L/W Ratio1.10
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
6.40 mm7.04 mm1.09 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1547737916
Side View
Table 57.0%Crown 36.48°Girdle: Slightly ThickPavilion 42.23°Culet: NoneDepth 59.7%

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: Oct 31
Current: £1,578 GBP|Low: £1,064 GBP|High: £2,629 GBP|Avg: £1,757 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5£1,300 GBP
Retailer 8£1,328 GBP
Retailer 4£1,434 GBP
Retailer 9£1,483 GBP
Retailer 2£1,542 GBP
Retailer 1£1,578 GBP
Retailer 7£1,894 GBP
Retailer 6£1,966 GBP
Retailer 3£2,521 GBP

44 data points across 9 retailers

16 retailers£1,300 GBP to £2,521 GBP

A
Cheapest Retailer
-
£1,300 GBP
$1,742 USD
A
Retailer 2
-
£1,328 GBP
$1,780 USD
View
Final sale: no returns
A
Retailer 3
-
£1,434 GBP
$1,922 USD
View
Retailer 4
-
£1,483 GBP
$1,987 USD
View
Price last confirmed 48 days ago
Retailer 5
-
£1,483 GBP
$1,987 USD
View
Price last confirmed 31 days ago
Retailer 6
-
£1,483 GBP
$1,987 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
£1,542 GBP
$2,066 USD
View
Retailer 8
-
£1,552 GBP
$2,079 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
£1,578 GBP
View
Retailer 10
-
£1,711 GBP
$2,293 USD
View
Price last confirmed 56 days ago
Retailer 11
-
£1,711 GBP
$2,293 USD
View
Price last confirmed 48 days ago
Retailer 12
-
£1,711 GBP
$2,293 USD
View
Price last confirmed 34 days ago
B+
Retailer 13
-
£1,894 GBP
$2,538 USD
View
B+
Retailer 14
-
£1,966 GBP
€2,509 EUR
View
B
Retailer 15
-
£2,521 GBP
View
Most Expensive
NZ Jewellers
ae9bd43b-c13c-4194-bbd7-64c76e9d04fb · Sep 30
£3,617 GBP
$4,847 USD
View
Price last confirmed 32 days ago
15 more retailers have this diamond
Prices start from £1,300 GBPSave up to £1,221 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
1.09ct Heart
£1,300 GBP