CaratHunter
Plans
Round|Natural|GIA

1.09ct E IF Round Natural Diamond

EX • E/IF • GIA 6501177019

Certificate GIA 6501177019

Diamond specifications and retailer prices

From £4,480 GBP
SGD 8,111 SGD
As of October 30, 2026
Save £5,534 GBP (55%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £10,014 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 6501177019. Listed at 8 retailers as of October 29, 2026, with prices from £4,480 to £10,014, a £5,534 spread on the same certified stone. Diamond Quarter lists it at £10,014. 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
FluorescenceMedium
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6501177019
Dimensions6.59 × 6.55 × 4.06 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.59 mm6.55 mm1.09 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6501177019
Side View
Table 59.0%Crown 35°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: £5,593 GBP|Low: £4,480 GBP|High: £6,295 GBP|Avg: £5,350 GBP|-10.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 3£4,480 GBP
Retailer 4£4,653 GBP
Retailer 2£4,836 GBP
Retailer 6£4,900 GBP
Retailer 5£5,435 GBP
Retailer 1£5,593 GBP
Retailer 7£6,210 GBP

44 data points across 7 retailers

8 retailers£4,480 GBP to £10,014 GBP

A
Cheapest Retailer
-
£4,480 GBP
SGD 8,111 SGD
A
Retailer 2
-
£4,653 GBP
$6,234 USD
View
A+
Retailer 3
-
£4,836 GBP
View
A
Retailer 4
-
£4,900 GBP
MYR 26,741 MYR
View
A
Retailer 5
-
£5,435 GBP
$7,282 USD
View
A
Retailer 6
-
£5,593 GBP
A$11,530 AUD
View
A
Retailer 7
-
£6,210 GBP
SGD 11,245 SGD
View
Most Expensive
B
Diamond Quarter
1.09IFE65196568KG · Oct 29
£10,014 GBP
View
7 more retailers have this diamond
Prices start from £4,480 GBPSave up to £5,534 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
£4,480 GBP