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Round|Natural|GIA

1.28ct I VVS1 Round Natural Diamond

VG • I/VVS1 • GIA 2151635387

Certificate GIA 2151635387

Diamond specifications and retailer prices

From £3,473 GBP
$4,653 USD
As of October 31, 2026
Save £1,299 GBP (27%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £4,772 GBP at Yorxs · As of October 31, 2026
View at Yorxs

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 I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by GIA 2151635387. Listed at 6 retailers as of October 31, 2026, with prices from £3,473 to £4,772, a £1,299 spread on the same certified stone. Yorxs lists it at £4,772. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
I
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2151635387
Dimensions6.87 × 6.98 × 4.38 mm
L/W Ratio1.02
Top View
6.87 mm6.98 mm1.28 ctI / VVS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2151635387
Side View
Table 57.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 63.3%

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 31
Current: £4,757 GBP|Low: £3,426 GBP|High: £4,817 GBP|Avg: £4,290 GBP|+1.1%
Retailer 1
Retailer 2
Yorxs
October 31, 2026
Retailer 2£3,473 GBP
Retailer 1£4,757 GBP
Yorxs£4,772 GBP

31 data points across 3 retailers

6 retailers£3,473 GBP to £4,772 GBP

A
Cheapest Retailer
-
£3,473 GBP
$4,653 USD
A
Retailer 2
-
£3,548 GBP
$4,754 USD
View
A
Retailer 3
-
£3,652 GBP
$4,893 USD
View
A
Retailer 4
-
£3,697 GBP
$4,953 USD
View
B+
Retailer 5
-
£4,757 GBP
View
Most Expensive
B+
Yorxs
RB4548 · Oct 31
£4,772 GBP
€6,089 EUR
View
5 more retailers have this diamond
Prices start from £3,473 GBPSave up to £1,299 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
£3,473 GBP