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Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6565511617

Certificate GIA 6565511617

Diamond specifications and retailer prices

From $2,854 SGD
As of November 6, 2026
Save $2,672 SGD (48%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,526 SGD at With Clarity · As of November 6, 2026
View at With Clarity

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 6565511617. Listed at 6 retailers as of November 6, 2026, with prices from $2,854 to $5,526, a $2,672 spread on the same certified stone. With Clarity lists it at $5,526. 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
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565511617
Dimensions6.93 × 6.98 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
6.93 mm6.98 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6565511617
Side View
Table 57.0%Crown 36.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.7%

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: $2,854 SGD|Low: $2,854 SGD|High: $5,636 SGD|Avg: $3,953 SGD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
With Clarity
November 6, 2026
Retailer 1$2,854 SGD
Retailer 4$3,076 SGD
Retailer 5$3,456 SGD
Retailer 3$3,883 SGD
Retailer 2$3,963 SGD
With Clarity$5,526 SGD

8 data points across 6 retailers

6 retailers$2,854 SGD to $5,526 SGD

A
Cheapest Retailer
-
$2,854 SGD
A
Retailer 2
-
$3,076 SGD
View
A
Retailer 3
-
$3,456 SGD
View
A
Retailer 4
-
$3,883 SGD
View
A
Retailer 5
-
$3,963 SGD
View
Most Expensive
B+
With Clarity
6565511617 · Nov 6
$5,526 SGD
$4,312 USD
View
5 more retailers have this diamond
Prices start from $2,854 SGDSave up to $2,672 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
$2,854 SGD