Round|Natural|GIA

1.30ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 7518928166

Certificate GIA 7518928166

Diamond specifications and retailer prices

From $5,440 SGD
As of November 4, 2026
Save $6,076 SGD (53%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $11,516 SGD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7518928166. Listed at 28 retailers as of November 4, 2026, with a 112% 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

1.30
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7518928166
Dimensions6.87 × 6.94 × 4.34 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
6.87 mm6.94 mm1.30 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7518928166
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

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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 4
Current: $7,747 SGD|Low: $5,278 SGD|High: $11,098 SGD|Avg: $7,005 SGD|+0.3%
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 5, 2026
Retailer 4$5,440 SGD
Retailer 11$5,627 SGD
Retailer 2$5,757 SGD
Retailer 10$6,237 SGD
Retailer 6$6,583 SGD
Retailer 12$6,602 SGD
Retailer 8$6,607 SGD
Retailer 3$6,941 SGD
Retailer 7$7,518 SGD
Retailer 1$7,747 SGD
Retailer 5$8,401 SGD
Retailer 9$10,936 SGD

34 data points across 12 retailers

28 retailers$5,440 SGD to $11,516 SGD

A
Cheapest Retailer
-
$5,440 SGD
A
Retailer 2
-
$5,627 SGD
View
A
Retailer 3
-
$5,757 SGD
View
Final sale: no returns
A
Retailer 4
-
$5,876 SGD
View
Retailer 5
-
$6,237 SGD
View
Price last confirmed 8 days ago
Retailer 6
-
$6,237 SGD
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Price last confirmed 50 days ago
Retailer 7
-
$6,237 SGD
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Price last confirmed 29 days ago
Retailer 8
-
$6,237 SGD
View
Price last confirmed 21 days ago
Retailer 9
-
$6,237 SGD
View
Price last confirmed 38 days ago
Retailer 10
-
$6,237 SGD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$6,583 SGD
View
B+
Retailer 12
-
$6,602 SGD
View
Retailer 13
-
$6,602 SGD
View
Price last confirmed 28 days ago
A
Retailer 14
-
$6,607 SGD
View
Retailer 15
-
$6,941 SGD
View
Price last confirmed 28 days ago
Retailer 16
-
$7,198 SGD
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Price last confirmed 45 days ago
Retailer 17
-
$7,198 SGD
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Price last confirmed 28 days ago
Retailer 18
-
$7,198 SGD
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Price last confirmed 16 days ago
B+
Retailer 19
-
$7,198 SGD
View
B+
Retailer 20
-
$7,518 SGD
View
Retailer 21
-
$7,599 SGD
View
Price last confirmed 22 days ago
B+
Retailer 22
-
$7,747 SGD
View
B+
Retailer 23
-
$8,401 SGD
View
B
Retailer 24
-
$10,936 SGD
View
B
Retailer 25
-
$11,516 SGD
View
Retailer 26
-
$11,516 SGD
View
Price last confirmed 48 days ago
Retailer 27
-
$11,516 SGD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
2682f6d3-f1db-4e26-aa79-b95c94e1323a · Oct 20
$11,516 SGD
$9,016 USD
View
Price last confirmed 16 days ago
27 more retailers have this diamond
Prices start from $5,440 SGDSave up to $6,076 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
$5,440 SGD