Round|Natural|GIA

1.28ct G IF Round Natural Diamond

EX • G/IF • GIA 1545607281

Certificate GIA 1545607281

Diamond specifications and retailer prices

From £4,936 GBP
As of November 4, 2026
Save £6,243 GBP (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £11,355 GBP at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1545607281. Listed at 23 retailers as of November 4, 2026, with a 126% 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

1.28
Carat
G
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1545607281
Dimensions6.90 × 6.94 × 4.31 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.90 mm6.94 mm1.28 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545607281
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.2%

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: Nov 4
Current: £11,179 GBP|Low: £4,936 GBP|High: £11,179 GBP|Avg: £6,831 GBP
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 7£4,936 GBP
Retailer 13£5,019 GBP
Retailer 14£5,575 GBP
Retailer 19£5,777 GBP
Retailer 2£6,129 GBP
Retailer 17£6,137 GBP
Retailer 4£6,170 GBP
Retailer 6£6,170 GBP
Retailer 11£6,396 GBP
Retailer 10£6,684 GBP
Retailer 5£6,691 GBP
Retailer 9£6,787 GBP
Retailer 3£6,830 GBP
Retailer 8£7,235 GBP
Retailer 15£7,256 GBP
Retailer 18£7,712 GBP
Retailer 12£8,154 GBP
Retailer 16£9,290 GBP
NZ Jewellers£11,179 GBP

28 data points across 19 retailers

23 retailers£4,936 GBP to £11,179 GBP

A
Cheapest Retailer
-
£4,936 GBP
A+
Retailer 2
-
£5,019 GBP
View
Retailer 3
-
£5,554 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£5,575 GBP
View
A
Retailer 5
-
£5,777 GBP
View
A
Retailer 6
-
£6,129 GBP
View
A
Retailer 7
-
£6,137 GBP
View
Retailer 8
-
£6,170 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£6,170 GBP
View
Final sale: no returns
Retailer 10
-
£6,396 GBP
View
Price last confirmed 14 days ago
A
Retailer 11
-
£6,684 GBP
View
A
Retailer 12
-
£6,691 GBP
View
A
Retailer 13
-
£6,787 GBP
View
Retailer 14
-
£6,789 GBP
View
Price last confirmed 60 days ago
A
Retailer 15
-
£6,830 GBP
View
A
Retailer 16
-
£7,235 GBP
View
A
Retailer 17
-
£7,256 GBP
View
B+
Retailer 18
-
£7,712 GBP
View
Retailer 19
-
£7,834 GBP
View
Price last confirmed 60 days ago
B+
Retailer 20
-
£8,154 GBP
View
B+
Retailer 21
-
£9,290 GBP
View
B
Retailer 22
-
£11,179 GBP
View
Most Expensive
NZ Jewellers
7b3ddb20-6945-418a-91af-0e9d327404f1 · Sep 1
£11,355 GBP
$15,283 USD
View
Price last confirmed 65 days ago
22 more retailers have this diamond
Prices start from £4,936 GBPSave up to £6,243 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+
1.28ct Round
£4,936 GBP