Round|Natural|GIA

1.30ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6485801399

Certificate GIA 6485801399

Diamond specifications and retailer prices

From $3,409 USD
As of November 1, 2026
Save $6,354 USD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,763 USD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6485801399. Listed at 20 retailers as of November 1, 2026, with prices from $3,409 to $9,763, a $6,354 spread on the same certified stone. Diamond Quarter lists it at $9,763. 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

1.30
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6485801399
Dimensions6.91 × 6.94 × 4.35 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.91 mm6.94 mm1.30 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6485801399
Side View
Table 56.0%Crown 35.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.8%

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 1
Current: $3,979 USD|Low: $3,409 USD|High: $7,239 USD|Avg: $4,609 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
Retailer 13
November 6, 2026
Retailer 10$3,409 USD
Retailer 11$3,495 USD
Retailer 2$3,868 USD
Retailer 3$3,913 USD
Retailer 1$3,979 USD
Retailer 4$4,063 USD
Retailer 12$4,277 USD
Retailer 8$4,311 USD
Retailer 5$4,514 USD
Retailer 6$4,586 USD
Retailer 13$5,089 USD
Retailer 7$6,246 USD
Retailer 9$7,190 USD

37 data points across 13 retailers

20 retailers$3,409 USD to $9,763 USD

A
Cheapest Retailer
-
$3,409 USD
A
Retailer 2
-
$3,495 USD
View
B+
Retailer 3
-
$3,868 USD
View
B+
Retailer 4
-
$3,913 USD
View
B+
Retailer 5
-
$3,979 USD
View
B+
Retailer 6
-
$4,063 USD
View
Retailer 7
-
$4,277 USD
View
Price last confirmed 56 days ago
Retailer 8
-
$4,277 USD
View
Price last confirmed 19 days ago
Retailer 9
-
$4,277 USD
View
Price last confirmed 21 days ago
Retailer 10
-
$4,277 USD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$4,311 USD
View
B+
Retailer 12
-
$4,514 USD
View
B+
Retailer 13
-
$4,586 USD
View
Retailer 14
-
$4,935 USD
View
Price last confirmed 60 days ago
Retailer 15
-
$4,935 USD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$6,246 USD
View
Retailer 17
-
$7,190 USD
View
Price last confirmed 8 days ago
Retailer 18
-
$7,451 USD
View
Price last confirmed 57 days ago
Retailer 19
-
$7,451 USD
View
Price last confirmed 20 days ago
Most Expensive
B
Diamond Quarter
1.3SI2H649971CEN · Nov 5
$9,763 USD
£7,687 GBP
View
19 more retailers have this diamond
Prices start from $3,409 USDSave up to $6,354 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
1.30ct Round
$3,409 USD