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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 $1,664 USD
As of November 4, 2026
Save $2,149 USD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,813 USD 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 $1,664 to $3,813, a $2,149 spread on the same certified stone. MOH London lists it at $3,813. 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
Color
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: $3,813 USD|Low: $1,638 USD|High: $3,843 USD|Avg: $2,211 USD|+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$1,664 USD
Retailer 10$1,734 USD
Retailer 5$1,749 USD
Retailer 7$1,814 USD
Retailer 14$1,825 USD
Retailer 19$1,841 USD
Retailer 6$1,859 USD
Retailer 13$1,956 USD
Retailer 18$1,977 USD
Retailer 16$2,116 USD
Retailer 8$2,174 USD
Retailer 3$2,300 USD
Retailer 9$2,300 USD
Retailer 12$2,356 USD
Retailer 4$2,380 USD
Retailer 17$2,513 USD
Retailer 2$2,766 USD
Retailer 11$3,133 USD
MOH London$3,813 USD

35 data points across 19 retailers

18 retailers$1,664 USD to $3,813 USD

B+
Cheapest Retailer
-
$1,664 USD
A
Retailer 2
-
$1,734 USD
View
B+
Retailer 3
-
$1,749 USD
View
B+
Retailer 4
-
$1,814 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,825 USD
View
B+
Retailer 6
-
$1,841 USD
View
B+
Retailer 7
-
$1,859 USD
View
Retailer 8
-
$1,977 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,116 USD
View
B+
Retailer 10
-
$2,174 USD
View
B+
Retailer 11
-
$2,300 USD
View
B+
Retailer 12
-
$2,300 USD
View
B+
Retailer 13
-
$2,356 USD
View
B+
Retailer 14
-
$2,380 USD
View
B+
Retailer 15
-
$2,513 USD
View
B+
Retailer 16
-
$2,766 USD
View
B+
Retailer 17
-
$3,133 USD
View
Most Expensive
B
MOH London
63C1E4875 · Nov 4
$3,813 USD
£3,002 GBP
View
17 more retailers have this diamond
Prices start from $1,664 USDSave up to $2,149 USD

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
$1,664 USD