Radiant|Natural|GIA

0.40ct D SI1 Radiant Natural Diamond

D/SI1 • GIA 6561480194

Certificate GIA 6561480194

Diamond specifications and retailer prices

From $780 USD
As of October 29, 2026
Save $588 USD (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,368 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct natural radiant diamond

This 0.4ct natural radiant sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 6561480194. Listed at 7 retailers as of October 29, 2026, with prices from $780 to $1,368, a $588 spread on the same certified stone. MOH London lists it at $1,368. 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

0.40
Carat
D
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle46.08°
Pavilion angle57.76°
OriginNatural
Grading LabGIA
CertificateGIA 6561480194
Dimensions3.98 × 3.98 × 2.66 mm
L/W Ratio1.00
Top View
3.98 mm3.98 mm0.40 ctD / SI1
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561480194
Side View
Table 65.0%Crown 46.08°GirdlePavilion 57.76°Culet: NoneDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,368 USD|Low: $780 USD|High: $1,377 USD|Avg: $957 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$780 USD
Retailer 4$798 USD
Retailer 5$808 USD
Retailer 7$817 USD
Retailer 2$914 USD
Retailer 3$1,196 USD
MOH London$1,368 USD

25 data points across 7 retailers

7 retailers$780 USD to $1,368 USD

B+
Cheapest Retailer
-
$780 USD
B+
Retailer 2
-
$798 USD
€760 EUR
View
B+
Retailer 3
-
$808 USD
£636 GBP
View
B
Retailer 4
-
$817 USD
View
B
Retailer 5
-
$914 USD
ZAR 14,761 ZAR
View
B
Retailer 6
-
$1,196 USD
£942 GBP
View
Most Expensive
B
MOH London
21F9397FC · Oct 29
$1,368 USD
£1,077 GBP
View
6 more retailers have this diamond
Prices start from $780 USDSave up to $588 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.

B+
0.40ct Radiant
$780 USD