Round|Natural|GIA

1.20ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2538469749

Certificate GIA 2538469749

Diamond specifications and retailer prices

From $2,816 USD
As of November 6, 2026
Save $3,306 USD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,471 USD at Queensmith · As of October 28, 2026
View at Queensmith

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2538469749. Listed at 22 retailers as of November 2, 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2538469749
Dimensions6.85 × 6.81 × 4.21 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.85 mm6.81 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2538469749
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.6%

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: $6,471 USD|Low: $2,816 USD|High: $6,496 USD|Avg: $4,163 USD|+2.2%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9$2,816 USD
Retailer 6$2,941 USD
Retailer 2$3,287 USD
Retailer 3$3,312 USD
Retailer 10$3,378 USD
Retailer 5$3,802 USD
Retailer 11$3,921 USD
Retailer 4$4,268 USD
Retailer 8$4,499 USD
Retailer 7$6,122 USD
Queensmith$6,471 USD

33 data points across 11 retailers

22 retailers$2,816 USD to $6,122 USD

A
Cheapest Retailer
-
$2,816 USD
A
Retailer 2
-
$2,941 USD
View
B+
Retailer 3
-
$3,287 USD
View
B+
Retailer 4
-
$3,312 USD
View
Retailer 5
-
$3,343 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$3,378 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,431 USD
View
B+
Retailer 8
-
$3,435 USD
View
Retailer 9
-
$3,554 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$3,661 USD
View
Price last confirmed 25 days ago
Retailer 11
-
$3,661 USD
View
Price last confirmed 39 days ago
B+
Retailer 12
-
$3,670 USD
View
B+
Retailer 13
-
$3,802 USD
View
B
Retailer 14
-
$3,806 USD
View
Retailer 15
-
$3,921 USD
View
Price last confirmed 29 days ago
Retailer 16
-
$4,224 USD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
$4,268 USD
View
B
Retailer 18
-
$4,499 USD
View
B
Retailer 19
-
$6,122 USD
View
Retailer 20
-
$6,378 USD
View
Price last confirmed 34 days ago
Retailer 21
-
$6,378 USD
View
Price last confirmed 41 days ago
Most Expensive
Queensmith
2538469749 · Oct 28
$6,471 USD
£5,095 GBP
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from $2,816 USDSave up to $3,306 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
$2,816 USD