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Round|Natural|IGI

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 642467910

Shape and cutting style on the report: Round brilliant

Certificate IGI 642467910

Diamond specifications and retailer prices

From $2,886 SGD
As of November 5, 2026
Save $2,750 SGD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,744 SGD at NZ Jewellers · As of October 17, 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 IGI 642467910. Listed at 16 retailers as of November 4, 2026, with a 95% 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 angle36.1°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 642467910
Dimensions6.93 × 7.00 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.93 mm7.00 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 642467910
Side View
Table 58.0%Crown 36.1°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.4%

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 5
Current: $3,454 SGD|Low: $2,853 SGD|High: $5,718 SGD|Avg: $3,549 SGD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$2,886 SGD
Retailer 9$2,977 SGD
Retailer 8$2,986 SGD
Retailer 2$3,064 SGD
Retailer 11$3,069 SGD
Retailer 10$3,374 SGD
Retailer 3$3,405 SGD
Retailer 1$3,454 SGD
Retailer 4$3,937 SGD
Retailer 6$4,001 SGD
Retailer 7$5,636 SGD

43 data points across 11 retailers

16 retailers$2,886 SGD to $5,636 SGD

A
Cheapest Retailer
-
$2,886 SGD
A
Retailer 2
-
$2,977 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,986 SGD
View
A
Retailer 4
-
$3,064 SGD
View
A
Retailer 5
-
$3,069 SGD
View
Retailer 6
-
$3,226 SGD
View
Price last confirmed 21 days ago
Retailer 7
-
$3,226 SGD
View
Price last confirmed 17 days ago
A
Retailer 8
-
$3,307 SGD
View
Retailer 9
-
$3,374 SGD
View
Price last confirmed 22 days ago
A
Retailer 10
-
$3,405 SGD
View
A
Retailer 11
-
$3,454 SGD
View
Retailer 12
-
$3,722 SGD
View
Price last confirmed 19 days ago
A
Retailer 13
-
$3,937 SGD
View
A
Retailer 14
-
$4,001 SGD
View
B+
Retailer 15
-
$5,636 SGD
View
Most Expensive
NZ Jewellers
0fe13bdb-e031-434a-a5f2-ccaa9d26e219 · Oct 17
$6,744 SGD
$5,262 USD
View
Price last confirmed 20 days ago
15 more retailers have this diamond
Prices start from $2,886 SGDSave up to $2,750 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
$2,886 SGD