Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1298194820

Certificate GIA 1298194820

Diamond specifications and retailer prices

From $2,299 USD
₹218,933 INR
As of October 30, 2026
Save $1,050 USD (31%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,308 USD at NZ Jewellers · As of October 20, 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 1298194820. Listed at 19 retailers as of October 28, 2026, with a 46% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1298194820
Dimensions6.79 × 6.71 × 4.24 mm
L/W Ratio1.01
Top View
6.79 mm6.71 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1298194820
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,308 USD|Low: $2,285 USD|High: $5,308 USD|Avg: $3,275 USD
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 2$2,299 USD
Retailer 10$2,601 USD
Retailer 9$2,729 USD
Retailer 16$2,765 USD
Retailer 7$2,798 USD
Retailer 13$2,890 USD
Retailer 8$2,965 USD
Retailer 3$3,047 USD
Retailer 4$3,047 USD
Retailer 18$3,164 USD
Retailer 14$3,176 USD
Retailer 6$3,267 USD
Retailer 11$3,348 USD
Retailer 15$3,505 USD
Retailer 5$3,515 USD
Retailer 12$3,677 USD
Retailer 17$5,122 USD
NZ Jewellers$5,308 USD

34 data points across 18 retailers

19 retailers$2,299 USD to $3,348 USD

B+
Cheapest Retailer
-
$2,299 USD
₹218,933 INR
Retailer 2
-
$2,601 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$2,729 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$2,765 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$2,798 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$2,890 USD
£2,276 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
$2,965 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$3,047 USD
View
Price last confirmed 8 days ago
Retailer 9
-
$3,047 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$3,164 USD
View
Price last confirmed 15 days ago
Retailer 11
-
$3,176 USD
£2,501 GBP
View
Price last confirmed 9 days ago
Retailer 12
-
$3,190 USD
View
Price last confirmed 12 days ago
Retailer 13
-
$3,267 USD
A$5,026 AUD
View
Price last confirmed 27 days ago
B
Retailer 14
-
$3,348 USD
€3,189 EUR
View
Retailer 15
-
$3,505 USD
£2,760 GBP
View
Price last confirmed 9 days ago
Retailer 16
-
$3,515 USD
View
Price last confirmed 10 days ago
Retailer 17
-
$3,677 USD
ZAR 59,403 ZAR
View
Price last confirmed 8 days ago
Retailer 18
-
$5,122 USD
£4,033 GBP
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
09ae892f-2b49-4085-a32f-59d8319f501c · Oct 20
$5,308 USD
View
Price last confirmed 10 days ago
18 more retailers have this diamond
Prices start from $2,299 USDSave up to $1,050 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.

B+
1.20ct Round
$2,299 USD