Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6545266568

Certificate GIA 6545266568

Diamond specifications and retailer prices

From $1,933 USD
HK$15,100 HKD
As of October 30, 2026
Save $2,566 USD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,360 USD at NZ Jewellers · As of October 3, 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 6545266568. Listed at 22 retailers as of October 25, 2026, with a 133% 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 angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545266568
Dimensions6.77 × 6.83 × 4.13 mm
L/W Ratio1.01
Top View
6.77 mm6.83 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545266568
Side View
Table 61.0%Crown 34°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,203 USD|Low: $1,933 USD|High: $4,547 USD|Avg: $2,773 USD|+2.9%
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
October 30, 2026
Retailer 4$1,933 USD
Retailer 7$2,051 USD
Retailer 13$2,258 USD
Retailer 12$2,366 USD
Retailer 2$2,401 USD
Retailer 5$2,412 USD
Retailer 6$2,440 USD
Retailer 10$2,564 USD
Retailer 8$2,707 USD
Retailer 3$2,869 USD
Retailer 9$3,122 USD
Retailer 1$3,203 USD
Retailer 11$4,498 USD

34 data points across 13 retailers

22 retailers$1,933 USD to $4,498 USD

A
Cheapest Retailer
-
$1,933 USD
HK$15,100 HKD
A
Retailer 2
-
$2,051 USD
₹195,296 INR
View
B+
Retailer 3
-
$2,258 USD
SGD 3,052 SGD
View
B+
Retailer 4
-
$2,366 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,401 USD
View
B+
Retailer 6
-
$2,412 USD
View
B+
Retailer 7
-
$2,415 USD
View
B+
Retailer 8
-
$2,440 USD
£1,921 GBP
View
Retailer 9
-
$2,564 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
$2,564 USD
View
Retailer 11
-
$2,564 USD
View
Price last confirmed 29 days ago
Retailer 12
-
$2,682 USD
View
Price last confirmed 31 days ago
B+
Retailer 13
-
$2,705 USD
View
B+
Retailer 14
-
$2,707 USD
£2,132 GBP
View
B+
Retailer 15
-
$2,710 USD
SGD 3,662 SGD
View
Retailer 16
-
$2,869 USD
A$4,414 AUD
View
Price last confirmed 24 days ago
Retailer 17
-
$2,958 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
$3,122 USD
ZAR 50,437 ZAR
View
B
Retailer 19
-
$3,203 USD
€3,050 EUR
View
B
Retailer 20
-
$4,498 USD
£3,542 GBP
View
Retailer 21
-
$5,360 USD
View
Price last confirmed 32 days ago
Most Expensive
NZ Jewellers
f1eaef19-7cf6-4a04-beac-734430fbd376 · Oct 3
$5,360 USD
View
Price last confirmed 27 days ago
21 more retailers have this diamond
Prices start from $1,933 USDSave up to $2,566 USD

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
$1,933 USD