CaratHunter
Plans
Round|Natural|GIA

1.20ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1439457358

Certificate GIA 1439457358

Diamond specifications and retailer prices

From $2,527 USD
As of November 4, 2026
Save $5,115 USD (67%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,642 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 1439457358. Listed at 21 retailers as of November 4, 2026, with prices from $2,527 to $7,642, a $5,115 spread on the same certified stone. Diamond Quarter lists it at $7,642. 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 angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1439457358
Dimensions6.79 × 6.75 × 4.25 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Top View
6.79 mm6.75 mm1.20 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1439457358
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 4
Current: $3,593 USD|Low: $2,296 USD|High: $5,575 USD|Avg: $3,307 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
November 5, 2026
Retailer 6$2,585 USD
Retailer 9$2,586 USD
Retailer 7$2,755 USD
Retailer 3$2,984 USD
Retailer 10$3,048 USD
Retailer 8$3,099 USD
Retailer 11$3,240 USD
Retailer 4$3,389 USD
Retailer 2$3,443 USD
Retailer 1$3,593 USD
Retailer 5$5,494 USD

41 data points across 11 retailers

21 retailers$2,527 USD to $7,642 USD

A
Cheapest Retailer
-
$2,527 USD
A
Retailer 2
-
$2,585 USD
View
A
Retailer 3
-
$2,586 USD
View
A
Retailer 4
-
$2,595 USD
View
A
Retailer 5
-
$2,755 USD
View
Final sale: no returns
A
Retailer 6
-
$2,755 USD
View
Retailer 7
-
$2,984 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,984 USD
View
B+
Retailer 9
-
$3,048 USD
View
B+
Retailer 10
-
$3,099 USD
View
B+
Retailer 11
-
$3,240 USD
View
B+
Retailer 12
-
$3,389 USD
View
B+
Retailer 13
-
$3,390 USD
View
B+
Retailer 14
-
$3,390 USD
View
B+
Retailer 15
-
$3,443 USD
View
B+
Retailer 16
-
$3,510 USD
View
B+
Retailer 17
-
$3,593 USD
View
Retailer 18
-
$3,820 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$5,494 USD
View
B
Retailer 20
-
$5,739 USD
View
Most Expensive
B
Diamond Quarter
1.2SI2H14589FD0N · Nov 5
$7,642 USD
£6,017 GBP
View
20 more retailers have this diamond
Prices start from $2,527 USDSave up to $5,115 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
$2,527 USD