Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1548400629

Certificate GIA 1548400629

Diamond specifications and retailer prices

From $4,730 SGD
As of November 6, 2026
Save $5,608 SGD (54%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: $10,339 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1548400629. Listed at 32 retailers as of November 5, 2026, with a 119% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1548400629
Dimensions6.90 × 6.93 × 4.33 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.90 mm6.93 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1548400629
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

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: $5,679 SGD|Low: $4,548 SGD|High: $9,552 SGD|Avg: $6,045 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 3$4,730 SGD
Retailer 12$4,900 SGD
Retailer 2$4,961 SGD
Retailer 5$5,114 SGD
Retailer 11$5,376 SGD
Retailer 1$5,679 SGD
Retailer 13$5,690 SGD
Retailer 9$5,804 SGD
Retailer 4$5,981 SGD
Retailer 8$6,608 SGD
Retailer 6$6,664 SGD
Retailer 7$7,240 SGD
Retailer 10$9,425 SGD

36 data points across 13 retailers

32 retailers$4,730 SGD to $10,339 SGD

A
Cheapest Retailer
-
$4,730 SGD
A
Retailer 2
-
$4,900 SGD
View
B+
Retailer 3
-
$4,961 SGD
View
Final sale: no returns
B+
Retailer 4
-
$5,114 SGD
View
B+
Retailer 5
-
$5,353 SGD
View
Retailer 6
-
$5,376 SGD
View
Price last confirmed 29 days ago
Retailer 7
-
$5,376 SGD
View
Price last confirmed 50 days ago
Retailer 8
-
$5,376 SGD
View
Price last confirmed 8 days ago
Retailer 9
-
$5,376 SGD
View
Price last confirmed 21 days ago
Retailer 10
-
$5,376 SGD
View
Price last confirmed 38 days ago
Retailer 11
-
$5,376 SGD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$5,679 SGD
View
B+
Retailer 13
-
$5,690 SGD
View
Retailer 14
-
$5,690 SGD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$5,804 SGD
View
B+
Retailer 16
-
$5,818 SGD
View
B+
Retailer 17
-
$5,818 SGD
View
Retailer 18
-
$5,981 SGD
View
Price last confirmed 28 days ago
B+
Retailer 19
-
$6,011 SGD
View
Retailer 20
-
$6,203 SGD
View
Price last confirmed 45 days ago
Retailer 21
-
$6,203 SGD
View
Price last confirmed 28 days ago
Retailer 22
-
$6,203 SGD
View
Price last confirmed 16 days ago
B
Retailer 23
-
$6,203 SGD
View
B+
Retailer 24
-
$6,608 SGD
View
B+
Retailer 25
-
$6,664 SGD
View
Retailer 26
-
$6,710 SGD
View
Price last confirmed 22 days ago
B
Retailer 27
-
$7,240 SGD
View
B
Retailer 28
-
$9,425 SGD
View
Retailer 29
-
$10,339 SGD
View
Price last confirmed 48 days ago
B
Retailer 30
-
$10,339 SGD
View
Retailer 31
-
$10,339 SGD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
44391ff5-c097-4bda-8922-567e8b4de253 · Oct 20
$10,339 SGD
$8,067 USD
View
Price last confirmed 17 days ago
31 more retailers have this diamond
Prices start from $4,730 SGDSave up to $5,608 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
$4,730 SGD