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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6545266568

Certificate GIA 6545266568

Diamond specifications and retailer prices

From $2,770 AUD
HK$15,200 HKD
As of November 1, 2026
Save $3,625 AUD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,630 AUD 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 November 1, 2026, with a 131% 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,908 AUD|Low: $2,752 AUD|High: $6,473 AUD|Avg: $3,926 AUD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8$2,770 AUD
Retailer 1$2,908 AUD
Retailer 2$3,215 AUD
Retailer 12$3,368 AUD
Retailer 3$3,418 AUD
Retailer 5$3,464 AUD
Retailer 11$3,650 AUD
Retailer 7$3,878 AUD
Retailer 4$4,085 AUD
Retailer 9$4,486 AUD
Retailer 10$4,559 AUD
Retailer 6$6,395 AUD

32 data points across 12 retailers

22 retailers$2,770 AUD to $6,395 AUD

A
Cheapest Retailer
-
$2,770 AUD
HK$15,200 HKD
A
Retailer 2
-
$2,908 AUD
₹194,576 INR
View
B+
Retailer 3
-
$3,215 AUD
SGD 3,052 SGD
View
B+
Retailer 4
-
$3,368 AUD
$2,366 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,418 AUD
$2,401 USD
View
B+
Retailer 6
-
$3,434 AUD
$2,412 USD
View
B+
Retailer 7
-
$3,438 AUD
$2,415 USD
View
B+
Retailer 8
-
$3,464 AUD
£1,916 GBP
View
Retailer 9
-
$3,650 AUD
$2,564 USD
View
Price last confirmed 33 days ago
B+
Retailer 10
-
$3,650 AUD
$2,564 USD
View
Retailer 11
-
$3,650 AUD
$2,564 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$3,818 AUD
$2,682 USD
View
Price last confirmed 32 days ago
B+
Retailer 13
-
$3,850 AUD
$2,705 USD
View
B+
Retailer 14
-
$3,858 AUD
SGD 3,662 SGD
View
B+
Retailer 15
-
$3,878 AUD
£2,145 GBP
View
Retailer 16
-
$4,085 AUD
View
Price last confirmed 25 days ago
Retailer 17
-
$4,211 AUD
$2,958 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
$4,486 AUD
ZAR 50,912 ZAR
View
B
Retailer 19
-
$4,559 AUD
€3,050 EUR
View
B
Retailer 20
-
$6,395 AUD
£3,537 GBP
View
Retailer 21
-
$7,630 AUD
$5,360 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
f1eaef19-7cf6-4a04-beac-734430fbd376 · Oct 3
$7,630 AUD
$5,360 USD
View
Price last confirmed 29 days ago
21 more retailers have this diamond
Prices start from $2,770 AUDSave up to $3,625 AUD

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
$2,770 AUD