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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1558685000

Certificate GIA 1558685000

Diamond specifications and retailer prices

From $5,761 CAD
$4,124 USD
As of November 1, 2026
Save $4,678 CAD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,439 CAD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558685000. Listed at 13 retailers as of October 26, 2026, with prices from $5,761 to $10,439, a $4,678 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,439. 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

1.51
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558685000
Dimensions7.75 × 5.70 × 3.87 mm
L/W Ratio1.36
Culet sizeNone
Top View
7.75 mm5.70 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558685000
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.8%

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 1
Current: $7,387 CAD|Low: $5,761 CAD|High: $10,642 CAD|Avg: $7,396 CAD|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Wholesale Diamonds Direct
November 2, 2026
Retailer 10$5,761 CAD
Retailer 12$5,827 CAD
Retailer 8$5,923 CAD
Retailer 9$6,058 CAD
Retailer 4$6,244 CAD
Retailer 6$6,508 CAD
Retailer 13$7,205 CAD
Retailer 2$7,228 CAD
Retailer 1$7,387 CAD
Retailer 7$7,934 CAD
Retailer 5$8,161 CAD
Retailer 11$9,646 CAD
Retailer 3$10,250 CAD
Wholesale Diamonds Direct$10,439 CAD

31 data points across 14 retailers

13 retailers$5,761 CAD to $10,439 CAD

A
Cheapest Retailer
-
$5,761 CAD
$4,124 USD
A
Retailer 2
-
$5,827 CAD
SGD 5,637 SGD
View
A
Retailer 3
-
$5,923 CAD
$4,240 USD
View
A
Retailer 4
-
$6,058 CAD
$4,337 USD
View
A
Retailer 5
-
$6,244 CAD
SGD 6,040 SGD
View
A
Retailer 6
-
$6,508 CAD
£3,668 GBP
View
A
Retailer 7
-
$7,205 CAD
$5,158 USD
View
A
Retailer 8
-
$7,228 CAD
$5,174 USD
View
A
Retailer 9
-
$7,387 CAD
€5,036 EUR
View
B+
Retailer 10
-
$7,934 CAD
$5,680 USD
View
B
Retailer 11
-
$9,646 CAD
$6,905 USD
View
B
Retailer 12
-
$10,250 CAD
$7,338 USD
View
Most Expensive
B
Wholesale Diamonds Direct
570704296 · Oct 26
$10,439 CAD
$7,473 USD
View
12 more retailers have this diamond
Prices start from $5,761 CADSave up to $4,678 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
1.51ct Radiant
$5,761 CAD