Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2526662059

Certificate GIA 2526662059

Diamond specifications and retailer prices

From $3,004 CAD
HK$16,800 HKD
As of October 30, 2026
Save $3,819 CAD (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,760 CAD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526662059. Listed at 21 retailers as of October 29, 2026, with a 127% 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

1.20
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2526662059
Dimensions6.78 × 6.74 × 4.24 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.78 mm6.74 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526662059
Side View
Table 58.0%Crown 35°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: $4,751 CAD|Low: $3,004 CAD|High: $7,093 CAD|Avg: $4,288 CAD|-0.5%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 2$3,004 CAD
Retailer 15$3,466 CAD
Retailer 6$3,633 CAD
Retailer 11$3,688 CAD
Retailer 5$3,744 CAD
Retailer 13$3,745 CAD
Retailer 12$3,967 CAD
Retailer 4$4,058 CAD
Retailer 7$4,205 CAD
Retailer 3$4,257 CAD
Retailer 8$4,313 CAD
Retailer 14$4,547 CAD
Retailer 1$4,751 CAD
Retailer 10$4,942 CAD
Retailer 9$6,823 CAD

38 data points across 15 retailers

21 retailers$3,004 CAD to $6,823 CAD

A
Cheapest Retailer
-
$3,004 CAD
HK$16,800 HKD
Retailer 2
-
$3,466 CAD
$2,481 USD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$3,633 CAD
$2,601 USD
View
B+
Retailer 4
-
$3,688 CAD
$2,640 USD
View
B+
Retailer 5
-
$3,744 CAD
$2,680 USD
View
B+
Retailer 6
-
$3,745 CAD
$2,681 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,967 CAD
$2,840 USD
View
Retailer 8
-
$4,058 CAD
$2,905 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$4,058 CAD
$2,905 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,205 CAD
SGD 4,068 SGD
View
Retailer 11
-
$4,214 CAD
$3,017 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$4,257 CAD
$3,047 USD
View
B+
Retailer 13
-
$4,313 CAD
£2,431 GBP
View
Retailer 14
-
$4,547 CAD
A$5,008 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
$4,682 CAD
$3,352 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$4,751 CAD
€3,239 EUR
View
Retailer 17
-
$4,835 CAD
$3,461 USD
View
Price last confirmed 38 days ago
B
Retailer 18
-
$4,942 CAD
ZAR 57,152 ZAR
View
B
Retailer 19
-
$6,823 CAD
£3,846 GBP
View
Retailer 20
-
$8,485 CAD
$6,074 USD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
df505308-ff89-4381-967b-67b853d5eaea · Sep 19
$8,760 CAD
$6,271 USD
View
Price last confirmed 41 days ago
20 more retailers have this diamond
Prices start from $3,004 CADSave up to $3,819 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
1.20ct Round
$3,004 CAD