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Heart|Natural|GIA

1.09ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 3545471894

Certificate GIA 3545471894

Diamond specifications and retailer prices

From £1,146 GBP
HK$12,000 HKD
As of November 2, 2026
Save £1,404 GBP (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,386 GBP at NZ Jewellers · As of September 25, 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 3545471894. Listed at 12 retailers as of November 1, 2026, with a 122% 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
SymmetryExcellent
FluorescenceNone
Pavilion angle39.4°
OriginNatural
Grading LabGIA
CertificateGIA 3545471894
Dimensions6.22 × 7.08 × 4.16 mm
L/W Ratio1.14
Top View
6.22 mm7.08 mm1.09 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545471894
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 39.4°Culet: NoneDepth 58.7%

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: Nov 2
Current: £1,146 GBP|Low: £1,127 GBP|High: £2,896 GBP|Avg: £1,643 GBP|-7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 1£1,146 GBP
Retailer 4£1,234 GBP
Retailer 6£1,261 GBP
Retailer 10£1,358 GBP
Retailer 9£1,379 GBP
Retailer 7£1,388 GBP
Retailer 2£1,389 GBP
Retailer 5£1,620 GBP
Retailer 3£1,631 GBP
Retailer 11£2,348 GBP
Retailer 8£2,551 GBP

37 data points across 11 retailers

12 retailers£1,146 GBP to £2,551 GBP

A
Cheapest Retailer
-
£1,146 GBP
HK$12,000 HKD
A
Retailer 2
-
£1,234 GBP
$1,654 USD
View
Final sale: no returns
A
Retailer 3
-
£1,261 GBP
$1,689 USD
View
A
Retailer 4
-
£1,358 GBP
$1,819 USD
View
A
Retailer 5
-
£1,379 GBP
$1,848 USD
View
A
Retailer 6
-
£1,388 GBP
$1,860 USD
View
A
Retailer 7
-
£1,389 GBP
$1,861 USD
View
B+
Retailer 8
-
£1,620 GBP
View
B+
Retailer 9
-
£1,631 GBP
SGD 2,953 SGD
View
Retailer 10
-
£2,348 GBP
$3,146 USD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£2,551 GBP
View
Most Expensive
NZ Jewellers
9a0f2b80-3211-4d1f-b7f7-ad5c352f95de · Sep 25
£3,386 GBP
$4,537 USD
View
Price last confirmed 38 days ago
11 more retailers have this diamond
Prices start from £1,146 GBPSave up to £1,404 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
£1,146 GBP