Round|Natural|GIA

0.51ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7546006172

Certificate GIA 7546006172

Diamond specifications and retailer prices

From $590 CAD
HK$3,300 HKD
As of October 25, 2026
Save $340 CAD (37%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,586 CAD at MOH London · As of October 21, 2026
View at MOH London

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7546006172. Listed at 17 retailers as of October 24, 2026, with a 58% 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

0.51
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7546006172
Dimensions5.10 × 5.06 × 3.20 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud
Top View
5.10 mm5.06 mm0.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546006172
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

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 25
Current: $1,586 CAD|Low: $509 CAD|High: $1,637 CAD|Avg: $847 CAD|-3.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 24, 2026
Retailer 14$509 CAD
Retailer 4$590 CAD
Retailer 8$617 CAD
Retailer 5$668 CAD
Retailer 11$722 CAD
Retailer 9$729 CAD
Retailer 13$789 CAD
Retailer 2$825 CAD
Retailer 6$874 CAD
Retailer 12$885 CAD
Retailer 10$930 CAD
Retailer 3$964 CAD
Retailer 15$1,043 CAD
Retailer 7$1,325 CAD
MOH London$1,586 CAD

22 data points across 15 retailers

17 retailers$590 CAD to $930 CAD

Retailer 1
-
$509 CAD
₹34,689 INR
Price last confirmed 7 days ago
A
Retailer 2
-
$590 CAD
HK$3,300 HKD
View
Retailer 3
-
$668 CAD
$478 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$722 CAD
SGD 698 SGD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$729 CAD
$522 USD
View
Retailer 6
-
$789 CAD
£445 GBP
View
Price last confirmed 7 days ago
Retailer 7
-
$812 CAD
$581 USD
View
Price last confirmed 31 days ago
A
Retailer 8
-
$825 CAD
£465 GBP
View
B
Retailer 9
-
$830 CAD
SGD 803 SGD
View
Retailer 10
-
$874 CAD
$625 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$885 CAD
£499 GBP
View
Price last confirmed 7 days ago
A
Retailer 12
-
$930 CAD
€634 EUR
View
Retailer 13
-
$964 CAD
$690 USD
View
Price last confirmed 8 days ago
Retailer 14
-
$1,043 CAD
ZAR 12,057 ZAR
View
Price last confirmed 9 days ago
Retailer 15
-
$1,110 CAD
A$1,223 AUD
View
Price last confirmed 29 days ago
Retailer 16
-
$1,325 CAD
$949 USD
View
Price last confirmed 16 days ago
Most Expensive
MOH London
CAD833059 · Oct 21
$1,586 CAD
£894 GBP
View
Price last confirmed 10 days ago
16 more retailers have this diamond
Prices start from $590 CADSave up to $340 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
0.51ct Round
$590 CAD