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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 $2,778 USD
HK$21,700 HKD
As of November 1, 2026
Save $4,106 USD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,883 USD 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 October 28, 2026, with prices from $2,778 to $6,883, a $4,106 spread on the same certified stone. Queensmith lists it at $6,883. 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
Color
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 1
Current: $6,883 USD|Low: $2,752 USD|High: $7,029 USD|Avg: $4,040 USD|+0.5%
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 3, 2026
Retailer 14$2,778 USD
Retailer 10$2,913 USD
Retailer 5$3,309 USD
Retailer 4$3,337 USD
Retailer 12$3,367 USD
Retailer 7$3,385 USD
Retailer 15$3,545 USD
Retailer 2$3,813 USD
Retailer 3$3,831 USD
Retailer 9$3,850 USD
Retailer 6$3,868 USD
Retailer 11$4,314 USD
Retailer 13$4,530 USD
Retailer 8$6,101 USD
Queensmith$6,883 USD

25 data points across 15 retailers

18 retailers$2,778 USD to $6,883 USD

A
Cheapest Retailer
-
$2,778 USD
HK$21,700 HKD
A
Retailer 2
-
$2,913 USD
₹277,388 INR
View
A
Retailer 3
-
$3,309 USD
View
A
Retailer 4
-
$3,337 USD
View
A
Retailer 5
-
$3,367 USD
View
Final sale: no returns
A
Retailer 6
-
$3,385 USD
SGD 4,574 SGD
View
A
Retailer 7
-
$3,545 USD
View
B+
Retailer 8
-
$3,550 USD
View
B+
Retailer 9
-
$3,813 USD
£3,002 GBP
View
B+
Retailer 10
-
$3,831 USD
View
B+
Retailer 11
-
$3,850 USD
View
B+
Retailer 12
-
$3,868 USD
SGD 5,227 SGD
View
B+
Retailer 13
-
$3,996 USD
A$6,148 AUD
View
Retailer 14
-
$4,142 USD
A$6,373 AUD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
$4,314 USD
€4,109 EUR
View
B+
Retailer 16
-
$4,530 USD
ZAR 73,189 ZAR
View
B
Retailer 17
-
$6,101 USD
£4,804 GBP
View
Most Expensive
B
Queensmith
1558124148 · Oct 28
$6,883 USD
£5,420 GBP
View
17 more retailers have this diamond
Prices start from $2,778 USDSave up to $4,106 USD

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
$2,778 USD