Radiant|Natural|GIA

1.51ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 7543765163

Certificate GIA 7543765163

Diamond specifications and retailer prices

From $7,440 CAD
$5,326 USD
As of October 30, 2026
Save $6,886 CAD (48%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $15,749 CAD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded G 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 7543765163. Listed at 25 retailers as of October 28, 2026, with a 93% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle46.92°
Pavilion angle29.99°
OriginNatural
Grading LabGIA
CertificateGIA 7543765163
Dimensions7.27 × 5.69 × 3.86 mm
L/W Ratio1.28
Girdle conditionVery Thick
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural, Natural
Top View
7.27 mm5.69 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7543765163
Side View
Table 63.0%Crown 46.92°Girdle: STK-VTKPavilion 29.99°Culet: NoneDepth 67.7%

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: Oct 30
Current: $11,569 CAD|Low: $7,218 CAD|High: $14,388 CAD|Avg: $10,160 CAD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 10$7,440 CAD
Retailer 9$7,873 CAD
Retailer 2$7,940 CAD
Retailer 11$7,948 CAD
Retailer 5$8,899 CAD
Retailer 6$9,031 CAD
Retailer 3$9,235 CAD
Retailer 4$10,289 CAD
Retailer 1$11,569 CAD
Retailer 7$13,948 CAD
Retailer 8$14,326 CAD

34 data points across 11 retailers

25 retailers$7,440 CAD to $14,326 CAD

A
Cheapest Retailer
-
$7,440 CAD
$5,326 USD
A
Retailer 2
-
$7,873 CAD
$5,636 USD
View
Final sale: no returns
A
Retailer 3
-
$7,940 CAD
$5,684 USD
View
A
Retailer 4
-
$7,948 CAD
$5,690 USD
View
A
Retailer 5
-
$8,411 CAD
$6,021 USD
View
Retailer 6
-
$8,531 CAD
$6,107 USD
View
Price last confirmed 25 days ago
Retailer 7
-
$8,531 CAD
$6,107 USD
View
Price last confirmed 32 days ago
Retailer 8
-
$8,531 CAD
$6,107 USD
View
Price last confirmed 25 days ago
Retailer 9
-
$8,531 CAD
$6,107 USD
View
Price last confirmed 40 days ago
A
Retailer 10
-
$8,899 CAD
£5,016 GBP
View
A
Retailer 11
-
$9,031 CAD
£5,091 GBP
View
B+
Retailer 12
-
$9,136 CAD
$6,540 USD
View
B+
Retailer 13
-
$9,136 CAD
$6,540 USD
View
Retailer 14
-
$9,235 CAD
A$10,170 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$9,443 CAD
$6,760 USD
View
B+
Retailer 16
-
$9,639 CAD
$6,900 USD
View
Retailer 17
-
$9,843 CAD
$7,046 USD
View
Price last confirmed 41 days ago
Retailer 18
-
$9,843 CAD
$7,046 USD
View
Price last confirmed 23 days ago
B+
Retailer 19
-
$10,289 CAD
€7,015 EUR
View
Retailer 20
-
$10,380 CAD
$7,431 USD
View
Price last confirmed 18 days ago
B+
Retailer 21
-
$11,569 CAD
ZAR 133,799 ZAR
View
B
Retailer 22
-
$13,948 CAD
£7,862 GBP
View
B
Retailer 23
-
$14,326 CAD
£8,075 GBP
View
Retailer 24
-
$15,749 CAD
$11,274 USD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
e5c15276-5653-4dca-b6f7-b5f55167e23b · Sep 21
$15,749 CAD
$11,274 USD
View
Price last confirmed 41 days ago
24 more retailers have this diamond
Prices start from $7,440 CADSave up to $6,886 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
$7,440 CAD