Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556359895

Certificate GIA 7556359895

Diamond specifications and retailer prices

From $2,958 USD
As of November 6, 2026
Save $3,449 USD (54%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $6,407 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7556359895. Listed at 28 retailers as of November 5, 2026, with a 117% 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7556359895
Dimensions6.76 × 6.80 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.76 mm6.80 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556359895
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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: Nov 6
Current: $3,519 USD|Low: $2,819 USD|High: $6,224 USD|Avg: $3,941 USD|-1.8%
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 6, 2026
Retailer 2$2,958 USD
Retailer 12$3,074 USD
Retailer 3$3,220 USD
Retailer 10$3,332 USD
Retailer 1$3,519 USD
Retailer 11$3,778 USD
Retailer 5$3,783 USD
Retailer 4$3,939 USD
Retailer 8$4,235 USD
Retailer 6$4,272 USD
Retailer 7$4,489 USD
Retailer 9$6,134 USD

36 data points across 12 retailers

28 retailers$2,958 USD to $6,407 USD

B+
Cheapest Retailer
-
$2,958 USD
B+
Retailer 2
-
$3,074 USD
View
Final sale: no returns
B+
Retailer 3
-
$3,108 USD
View
B+
Retailer 4
-
$3,220 USD
View
Retailer 5
-
$3,332 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$3,332 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$3,332 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$3,332 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$3,345 USD
View
Retailer 10
-
$3,460 USD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$3,519 USD
View
B+
Retailer 12
-
$3,630 USD
View
B+
Retailer 13
-
$3,630 USD
View
B
Retailer 14
-
$3,750 USD
View
B
Retailer 15
-
$3,778 USD
View
B+
Retailer 16
-
$3,783 USD
View
Retailer 17
-
$3,844 USD
View
Price last confirmed 28 days ago
Retailer 18
-
$3,844 USD
View
Price last confirmed 16 days ago
B
Retailer 19
-
$3,844 USD
View
Retailer 20
-
$3,939 USD
View
Price last confirmed 29 days ago
Retailer 21
-
$4,166 USD
View
Price last confirmed 22 days ago
B+
Retailer 22
-
$4,235 USD
View
B+
Retailer 23
-
$4,272 USD
View
B
Retailer 24
-
$4,489 USD
View
B
Retailer 25
-
$6,134 USD
View
B
Retailer 26
-
$6,407 USD
View
Retailer 27
-
$6,407 USD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
6cd2c71e-1897-451b-8e31-379ad3eed8b1 · Oct 20
$6,407 USD
View
Price last confirmed 17 days ago
27 more retailers have this diamond
Prices start from $2,958 USDSave up to $3,449 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
$2,958 USD