Round|Natural|GIA

1.28ct G IF Round Natural Diamond

EX • G/IF • GIA 6482527978

Certificate GIA 6482527978

Diamond specifications and retailer prices

From £6,412 GBP
As of November 1, 2026
Save £11,178 GBP (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £17,590 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 6482527978. Listed at 18 retailers as of November 1, 2026, with prices from £6,412 to £17,590, a £11,178 spread on the same certified stone. Diamond Quarter lists it at £17,590. 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 angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6482527978
Dimensions6.96 × 6.91 × 4.33 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.96 mm6.91 mm1.28 ctG / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6482527978
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £7,529 GBP|Low: £6,412 GBP|High: £11,059 GBP|Avg: £8,272 GBP|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6£6,412 GBP
Retailer 9£6,932 GBP
Retailer 7£6,996 GBP
Retailer 1£7,529 GBP
Retailer 5£7,697 GBP
Retailer 8£7,697 GBP
Retailer 4£8,787 GBP
Retailer 2£10,208 GBP
Retailer 3£10,898 GBP

42 data points across 9 retailers

18 retailers£6,412 GBP to £17,590 GBP

A
Cheapest Retailer
-
£6,412 GBP
Retailer 2
-
£6,431 GBP
View
Price last confirmed 43 days ago
A
Retailer 3
-
£6,552 GBP
View
A
Retailer 4
-
£6,932 GBP
View
A
Retailer 5
-
£6,996 GBP
View
Final sale: no returns
Retailer 6
-
£6,997 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£7,529 GBP
View
A
Retailer 8
-
£7,580 GBP
View
B+
Retailer 9
-
£7,697 GBP
View
Retailer 10
-
£7,697 GBP
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£8,347 GBP
View
B+
Retailer 12
-
£8,746 GBP
View
B+
Retailer 13
-
£8,787 GBP
View
Retailer 14
-
£9,209 GBP
View
Price last confirmed 14 days ago
B+
Retailer 15
-
£10,208 GBP
View
B+
Retailer 16
-
£10,898 GBP
View
B
Retailer 17
-
£11,662 GBP
View
Most Expensive
B
Diamond Quarter
1.28IFG64785B8DN · Nov 5
£17,590 GBP
View
17 more retailers have this diamond
Prices start from £6,412 GBPSave up to £11,178 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
£6,412 GBP