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Round|Natural|GIA

1.30ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6485801399

Certificate GIA 6485801399

Diamond specifications and retailer prices

From $4,369 SGD
As of November 1, 2026
Save $8,143 SGD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,512 SGD 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 $4,369 to $12,512, a $8,143 spread on the same certified stone. Diamond Quarter lists it at $12,512. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $5,099 SGD|Low: $4,369 SGD|High: $9,278 SGD|Avg: $5,907 SGD|-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$4,369 SGD
Retailer 11$4,479 SGD
Retailer 2$4,957 SGD
Retailer 3$5,015 SGD
Retailer 1$5,099 SGD
Retailer 4$5,207 SGD
Retailer 12$5,481 SGD
Retailer 8$5,525 SGD
Retailer 5$5,785 SGD
Retailer 6$5,877 SGD
Retailer 13$6,522 SGD
Retailer 7$8,005 SGD
Retailer 9$9,215 SGD

37 data points across 13 retailers

20 retailers$4,369 SGD to $12,512 SGD

A
Cheapest Retailer
-
$4,369 SGD
A
Retailer 2
-
$4,479 SGD
View
B+
Retailer 3
-
$4,957 SGD
View
B+
Retailer 4
-
$5,015 SGD
View
B+
Retailer 5
-
$5,099 SGD
View
B+
Retailer 6
-
$5,207 SGD
View
Retailer 7
-
$5,481 SGD
View
Price last confirmed 56 days ago
Retailer 8
-
$5,481 SGD
View
Price last confirmed 19 days ago
Retailer 9
-
$5,481 SGD
View
Price last confirmed 21 days ago
Retailer 10
-
$5,481 SGD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$5,525 SGD
View
B+
Retailer 12
-
$5,785 SGD
View
B+
Retailer 13
-
$5,877 SGD
View
Retailer 14
-
$6,325 SGD
View
Price last confirmed 60 days ago
Retailer 15
-
$6,325 SGD
View
Price last confirmed 19 days ago
B
Retailer 16
-
$8,005 SGD
View
Retailer 17
-
$9,215 SGD
View
Price last confirmed 8 days ago
Retailer 18
-
$9,549 SGD
View
Price last confirmed 57 days ago
Retailer 19
-
$9,549 SGD
View
Price last confirmed 20 days ago
Most Expensive
B
Diamond Quarter
1.3SI2H649971CEN · Nov 5
$12,512 SGD
£7,687 GBP
View
19 more retailers have this diamond
Prices start from $4,369 SGDSave up to $8,143 SGD

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
$4,369 SGD