Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 1558633430

Certificate GIA 1558633430

Diamond specifications and retailer prices

From $2,122 USD
As of November 5, 2026
Save $2,145 USD (50%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,267 USD at Wholesale Diamonds Direct · As of November 3, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558633430. Listed at 12 retailers as of November 3, 2026, with prices from $2,122 to $4,267, a $2,145 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,267. 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1558633430
Dimensions6.74 × 6.78 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.74 mm6.78 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1558633430
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: $3,840 USD|Low: $2,110 USD|High: $4,523 USD|Avg: $3,152 USD|+13.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 5, 2026
Retailer 3$2,122 USD
Retailer 5$2,524 USD
Retailer 10$2,606 USD
Retailer 9$2,764 USD
Retailer 8$2,829 USD
Retailer 7$3,159 USD
Retailer 6$3,258 USD
Retailer 2$3,352 USD
Retailer 1$3,840 USD
Retailer 4$3,960 USD
Wholesale Diamonds Direct$4,267 USD

34 data points across 11 retailers

12 retailers$2,122 USD to $4,267 USD

A
Cheapest Retailer
-
$2,122 USD
A
Retailer 2
-
$2,524 USD
View
A
Retailer 3
-
$2,606 USD
View
A
Retailer 4
-
$2,764 USD
View
A
Retailer 5
-
$2,829 USD
View
A
Retailer 6
-
$3,159 USD
View
B+
Retailer 7
-
$3,258 USD
View
B+
Retailer 8
-
$3,352 USD
View
B+
Retailer 9
-
$3,397 USD
View
B
Retailer 10
-
$3,840 USD
View
B+
Retailer 11
-
$3,960 USD
View
Most Expensive
B
Wholesale Diamonds Direct
564304206 · Nov 3
$4,267 USD
View
11 more retailers have this diamond
Prices start from $2,122 USDSave up to $2,145 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
$2,122 USD