Round|Natural|GIA

1.09ct E IF Round Natural Diamond

EX • E/IF • GIA 3545004066

Certificate GIA 3545004066

Diamond specifications and retailer prices

From £5,815 GBP
€7,420 EUR
As of October 29, 2026
Save £4,521 GBP (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £12,503 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.09ct natural round diamond

This 1.09ct natural round sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 3545004066. Listed at 20 retailers as of October 26, 2026, with a 78% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3545004066
Dimensions6.54 × 6.59 × 4.11 mm
L/W Ratio1.01
Top View
6.54 mm6.59 mm1.09 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545004066
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 29
Current: £6,850 GBP|Low: £5,815 GBP|High: £10,432 GBP|Avg: £7,193 GBP|+4.8%
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
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 4£5,815 GBP
Retailer 8£6,065 GBP
Retailer 2£6,401 GBP
Retailer 9£6,673 GBP
Retailer 14£6,780 GBP
Retailer 3£6,836 GBP
Retailer 16£6,836 GBP
Retailer 12£6,845 GBP
Retailer 1£6,850 GBP
Retailer 6£6,952 GBP
Retailer 7£7,091 GBP
Retailer 5£7,427 GBP
Retailer 15£7,574 GBP
Retailer 10£7,836 GBP
Retailer 13£8,938 GBP
Retailer 11£10,335 GBP

38 data points across 16 retailers

20 retailers£5,815 GBP to £10,335 GBP

A
Cheapest Retailer
-
£5,815 GBP
€7,420 EUR
A
Retailer 2
-
£5,898 GBP
A$12,158 AUD
View
A
Retailer 3
-
£6,401 GBP
$8,577 USD
View
A
Retailer 4
-
£6,673 GBP
View
A
Retailer 5
-
£6,780 GBP
$9,085 USD
View
Retailer 6
-
£6,836 GBP
$9,160 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
£6,836 GBP
$9,160 USD
View
Final sale: no returns
Retailer 8
-
£6,845 GBP
A$14,111 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
£6,850 GBP
View
A
Retailer 10
-
£7,091 GBP
A$14,618 AUD
View
A
Retailer 11
-
£7,427 GBP
View
Retailer 12
-
£7,475 GBP
$10,016 USD
View
Price last confirmed 23 days ago
A
Retailer 13
-
£7,520 GBP
$10,076 USD
View
Retailer 14
-
£7,574 GBP
$10,148 USD
View
Price last confirmed 7 days ago
Retailer 15
-
£7,590 GBP
$10,170 USD
View
Price last confirmed 32 days ago
A
Retailer 16
-
£7,836 GBP
€10,000 EUR
View
Retailer 17
-
£8,625 GBP
$11,557 USD
View
Price last confirmed 23 days ago
Retailer 18
-
£8,938 GBP
ZAR 193,473 ZAR
View
Price last confirmed 9 days ago
B+
Retailer 19
-
£10,335 GBP
View
Most Expensive
NZ Jewellers
81a00340-c187-4661-873f-bd0a8d626560 · Sep 28
£12,503 GBP
$16,752 USD
View
Price last confirmed 34 days ago
19 more retailers have this diamond
Prices start from £5,815 GBPSave up to £4,521 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 Round
£5,815 GBP