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Cushion|Natural|GIA

1.30ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1558124148

Certificate GIA 1558124148

Diamond specifications and retailer prices

From $3,559 SGD
As of November 6, 2026
Save $4,238 SGD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,822 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558124148. Listed at 18 retailers as of November 4, 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558124148
Dimensions7.19 × 5.54 × 3.82 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle, Natural
Top View
7.19 mm5.54 mm1.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1558124148
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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 6
Current: $8,822 SGD|Low: $3,527 SGD|High: $9,009 SGD|Avg: $5,184 SGD|+0.8%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 5$3,559 SGD
Retailer 9$3,701 SGD
Retailer 7$4,241 SGD
Retailer 6$4,277 SGD
Retailer 4$4,315 SGD
Retailer 13$4,361 SGD
Retailer 8$4,498 SGD
Retailer 2$4,838 SGD
Retailer 15$4,861 SGD
Retailer 3$4,934 SGD
Retailer 11$4,956 SGD
Retailer 10$5,443 SGD
Retailer 12$5,707 SGD
Retailer 14$7,797 SGD
Queensmith$8,822 SGD

26 data points across 15 retailers

18 retailers$3,559 SGD to $7,797 SGD

A
Cheapest Retailer
-
$3,559 SGD
A
Retailer 2
-
$3,701 SGD
View
A
Retailer 3
-
$4,241 SGD
View
A
Retailer 4
-
$4,277 SGD
View
A
Retailer 5
-
$4,315 SGD
View
Final sale: no returns
A
Retailer 6
-
$4,361 SGD
View
A
Retailer 7
-
$4,498 SGD
View
B+
Retailer 8
-
$4,550 SGD
View
B+
Retailer 9
-
$4,838 SGD
View
B+
Retailer 10
-
$4,861 SGD
View
B+
Retailer 11
-
$4,934 SGD
View
B+
Retailer 12
-
$4,956 SGD
View
B+
Retailer 13
-
$5,121 SGD
View
Retailer 14
-
$5,308 SGD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$5,443 SGD
View
B+
Retailer 16
-
$5,707 SGD
View
B
Retailer 17
-
$7,797 SGD
View
Most Expensive
Queensmith
1558124148 · Oct 28
$8,822 SGD
£5,420 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $3,559 SGDSave up to $4,238 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 Cushion
$3,559 SGD