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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2 • GIA 6551551304

Certificate GIA 6551551304

Diamond specifications and retailer prices

From $5,679 CAD
HK$31,700 HKD
As of October 29, 2026
Save $7,208 CAD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $12,887 CAD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E 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 6551551304. Listed at 17 retailers as of October 28, 2026, with prices from $5,679 to $12,887, a $7,208 spread on the same certified stone. Queensmith lists it at $12,887. 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
E
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551551304
Dimensions7.68 × 5.89 × 4.08 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Knot, Cavity, Needle
Top View
7.68 mm5.89 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551551304
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.2%

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 29
Current: $12,887 CAD|Low: $5,679 CAD|High: $12,940 CAD|Avg: $8,060 CAD|+0.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$5,679 CAD
Retailer 5$6,155 CAD
Retailer 8$6,712 CAD
Retailer 10$6,978 CAD
Retailer 9$7,062 CAD
Retailer 4$7,297 CAD
Retailer 2$7,443 CAD
Retailer 12$7,653 CAD
Retailer 11$7,868 CAD
Retailer 7$8,648 CAD
Retailer 6$12,254 CAD
Queensmith$12,887 CAD

32 data points across 12 retailers

17 retailers$5,679 CAD to $12,887 CAD

A
Cheapest Retailer
-
$5,679 CAD
HK$31,700 HKD
A
Retailer 2
-
$6,155 CAD
₹418,836 INR
View
A
Retailer 3
-
$6,712 CAD
SGD 6,481 SGD
View
A
Retailer 4
-
$6,978 CAD
$4,986 USD
View
A
Retailer 5
-
$7,062 CAD
$5,046 USD
View
Final sale: no returns
A
Retailer 6
-
$7,297 CAD
SGD 7,045 SGD
View
A
Retailer 7
-
$7,443 CAD
£4,187 GBP
View
A
Retailer 8
-
$7,653 CAD
$5,468 USD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$7,653 CAD
$5,468 USD
View
Price last confirmed 28 days ago
A
Retailer 10
-
$7,653 CAD
$5,468 USD
View
Price last confirmed 21 days ago
A
Retailer 11
-
$7,868 CAD
$5,621 USD
View
A
Retailer 12
-
$7,922 CAD
A$8,708 AUD
View
A
Retailer 13
-
$8,648 CAD
€5,885 EUR
View
A
Retailer 14
-
$8,830 CAD
$6,309 USD
View
Price last confirmed 20 days ago
B+
Retailer 15
-
$12,254 CAD
£6,894 GBP
View
B
Retailer 16
-
$12,799 CAD
$9,145 USD
View
Price last confirmed 30 days ago
Most Expensive
B
Queensmith
6551551304 · Oct 28
$12,887 CAD
£7,250 GBP
View
16 more retailers have this diamond
Prices start from $5,679 CADSave up to $7,208 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
$5,679 CAD