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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2554908315

Certificate GIA 2554908315

Diamond specifications and retailer prices

From $1,667 USD
As of November 5, 2026
Save $1,483 USD (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,150 USD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 2554908315. Listed at 8 retailers as of November 5, 2026, with prices from $1,667 to $3,150, a $1,483 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,150. 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2554908315
Dimensions6.80 × 6.76 × 4.15 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.80 mm6.76 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554908315
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NDepth 61.3%

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: Nov 5
Current: $1,905 USD|Low: $1,657 USD|High: $3,501 USD|Avg: $2,496 USD|-10.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 3$1,667 USD
Retailer 1$1,905 USD
Retailer 2$1,942 USD
Retailer 7$2,092 USD
Retailer 4$2,425 USD
Retailer 6$2,453 USD
Retailer 8$2,911 USD
Retailer 5$2,928 USD
Wholesale Diamonds Direct$3,150 USD

30 data points across 9 retailers

8 retailers$1,667 USD to $3,150 USD

A
Cheapest Retailer
-
$1,667 USD
A
Retailer 2
-
$1,905 USD
View
A
Retailer 3
-
$1,942 USD
View
A
Retailer 4
-
$2,092 USD
View
B+
Retailer 5
-
$2,425 USD
View
B+
Retailer 6
-
$2,453 USD
View
B
Retailer 7
-
$2,928 USD
View
Most Expensive
B
Wholesale Diamonds Direct
611346681 · Nov 6
$3,150 USD
View
7 more retailers have this diamond
Prices start from $1,667 USDSave up to $1,483 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
$1,667 USD