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Round|Natural|GIA

1.00ct D SI2 Round Natural Diamond

GD • D/SI2 • GIA 2235145421

Certificate GIA 2235145421

Diamond specifications and retailer prices

From £1,236 GBP
As of November 4, 2026
Save £1,596 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,833 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by GIA 2235145421. Listed at 18 retailers as of November 4, 2026, with prices from £1,236 to £2,833, a £1,596 spread on the same certified stone. MOH London lists it at £2,833. 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

1.00
Carat
D
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
Crown angle33°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 2235145421
Dimensions6.47 × 6.40 × 3.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.47 mm6.40 mm1.00 ctD / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2235145421
Side View
Table 60.0%Crown 33°Girdle: THN-VTKPavilion 40°Culet: NoneDepth 59.5%

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: Nov 4
Current: £2,833 GBP|Low: £1,217 GBP|High: £2,855 GBP|Avg: £1,643 GBP|+1.1%
MOH London
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 5, 2026
Retailer 15£1,236 GBP
Retailer 10£1,288 GBP
Retailer 5£1,299 GBP
Retailer 7£1,348 GBP
Retailer 14£1,356 GBP
Retailer 19£1,368 GBP
Retailer 6£1,381 GBP
Retailer 13£1,453 GBP
Retailer 18£1,469 GBP
Retailer 16£1,572 GBP
Retailer 8£1,615 GBP
Retailer 3£1,709 GBP
Retailer 9£1,709 GBP
Retailer 12£1,750 GBP
Retailer 4£1,768 GBP
Retailer 17£1,867 GBP
Retailer 2£2,055 GBP
Retailer 11£2,328 GBP
MOH London£2,833 GBP

35 data points across 19 retailers

18 retailers£1,236 GBP to £2,833 GBP

B+
Cheapest Retailer
-
£1,236 GBP
A
Retailer 2
-
£1,288 GBP
View
B+
Retailer 3
-
£1,299 GBP
View
B+
Retailer 4
-
£1,348 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,356 GBP
View
B+
Retailer 6
-
£1,368 GBP
View
B+
Retailer 7
-
£1,381 GBP
View
Retailer 8
-
£1,469 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£1,572 GBP
View
B+
Retailer 10
-
£1,615 GBP
View
B+
Retailer 11
-
£1,709 GBP
View
B+
Retailer 12
-
£1,709 GBP
View
B+
Retailer 13
-
£1,750 GBP
View
B+
Retailer 14
-
£1,768 GBP
View
B+
Retailer 15
-
£1,867 GBP
View
B+
Retailer 16
-
£2,055 GBP
View
B+
Retailer 17
-
£2,328 GBP
View
Most Expensive
B
MOH London
63C1E4875 · Nov 4
£2,833 GBP
View
17 more retailers have this diamond
Prices start from £1,236 GBPSave up to £1,596 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
1.00ct Round
£1,236 GBP