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Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1455782797

Certificate GIA 1455782797

Diamond specifications and retailer prices

From $2,214 USD
As of November 6, 2026
Save $4,367 USD (66%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,581 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1455782797. Listed at 18 retailers as of November 5, 2026, with prices from $2,214 to $6,581, a $4,367 spread on the same certified stone. Diamond Quarter lists it at $6,581. 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
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1455782797
Dimensions6.79 × 6.74 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Indented Natural, Natural
Top View
6.79 mm6.74 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1455782797
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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 6
Current: $2,765 USD|Low: $2,201 USD|High: $6,214 USD|Avg: $3,228 USD|-7.7%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 12$2,214 USD
Retailer 16$2,367 USD
Retailer 6$2,485 USD
Retailer 3$2,693 USD
Retailer 14$2,693 USD
Retailer 1$2,765 USD
Retailer 5$2,796 USD
Retailer 2$3,080 USD
Retailer 7$3,080 USD
Retailer 4$3,107 USD
Retailer 9$3,128 USD
Retailer 13$3,180 USD
Retailer 10$3,354 USD
Retailer 8$3,451 USD
Retailer 11$4,970 USD
Retailer 15$6,214 USD

40 data points across 16 retailers

18 retailers$2,214 USD to $6,581 USD

A
Cheapest Retailer
-
$2,214 USD
A
Retailer 2
-
$2,367 USD
View
A
Retailer 3
-
$2,485 USD
View
Final sale: no returns
Retailer 4
-
$2,693 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$2,693 USD
View
A
Retailer 6
-
$2,765 USD
View
B+
Retailer 7
-
$2,796 USD
View
Retailer 8
-
$3,016 USD
View
Price last confirmed 109 days ago
B+
Retailer 9
-
$3,080 USD
View
B+
Retailer 10
-
$3,080 USD
View
B+
Retailer 11
-
$3,106 USD
View
B+
Retailer 12
-
$3,107 USD
View
B+
Retailer 13
-
$3,128 USD
View
B+
Retailer 14
-
$3,180 USD
View
B+
Retailer 15
-
$3,354 USD
View
B
Retailer 16
-
$4,970 USD
View
B
Retailer 17
-
$6,214 USD
View
Most Expensive
B
Diamond Quarter
1.2SI2H14978F16N · Nov 5
$6,581 USD
£5,182 GBP
View
17 more retailers have this diamond
Prices start from $2,214 USDSave up to $4,367 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
$2,214 USD