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Radiant|Natural|GIA

1.00ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 1545627178

Certificate GIA 1545627178

Diamond specifications and retailer prices

From $3,294 CAD
As of November 6, 2026
Save $2,740 CAD (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,038 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545627178. Listed at 19 retailers as of November 6, 2026, with a 83% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
D
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545627178
Dimensions6.80 × 4.91 × 3.37 mm
L/W Ratio1.38
Culet sizeNone
Top View
6.80 mm4.91 mm1.00 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1545627178
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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 6
Current: $7,038 CAD|Low: $3,017 CAD|High: $7,085 CAD|Avg: $4,526 CAD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7$3,294 CAD
Retailer 4$3,320 CAD
Retailer 5$3,792 CAD
Retailer 6$4,111 CAD
Retailer 2$4,431 CAD
Retailer 8$4,860 CAD
Retailer 3$4,874 CAD
Retailer 9$4,981 CAD
MOH London$7,038 CAD

42 data points across 9 retailers

19 retailers$3,294 CAD to $6,034 CAD

A
Cheapest Retailer
-
$3,294 CAD
A
Retailer 2
-
$3,320 CAD
View
Final sale: no returns
A
Retailer 3
-
$3,397 CAD
View
A
Retailer 4
-
$3,410 CAD
View
A
Retailer 5
-
$3,578 CAD
View
Retailer 6
-
$3,792 CAD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$4,111 CAD
View
B+
Retailer 8
-
$4,114 CAD
View
B+
Retailer 9
-
$4,114 CAD
View
B+
Retailer 10
-
$4,147 CAD
View
B+
Retailer 11
-
$4,332 CAD
View
B+
Retailer 12
-
$4,332 CAD
View
B+
Retailer 13
-
$4,431 CAD
View
B+
Retailer 14
-
$4,473 CAD
View
Retailer 15
-
$4,860 CAD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
$4,874 CAD
View
B+
Retailer 17
-
$5,075 CAD
View
B
Retailer 18
-
$6,034 CAD
View
Most Expensive
MOH London
D538187AC · Oct 29
$7,038 CAD
£3,940 GBP
View
Price last confirmed 8 days ago
18 more retailers have this diamond
Prices start from $3,294 CADSave up to $2,740 CAD

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 Radiant
$3,294 CAD