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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 $5,009 NZD
As of November 6, 2026
Save $5,965 NZD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $12,417 NZD 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: $12,417 NZD|Low: $4,964 NZD|High: $12,680 NZD|Avg: $7,321 NZD|+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 6, 2026
Retailer 4$5,009 NZD
Retailer 2$5,210 NZD
Retailer 7$5,969 NZD
Retailer 6$6,020 NZD
Retailer 3$6,074 NZD
Retailer 11$6,139 NZD
Retailer 5$6,395 NZD
Retailer 12$6,815 NZD
Retailer 14$6,842 NZD
Retailer 15$6,945 NZD
Retailer 9$6,976 NZD
Retailer 8$7,661 NZD
Retailer 10$8,033 NZD
Retailer 13$10,975 NZD
Queensmith$12,417 NZD

26 data points across 15 retailers

18 retailers$5,009 NZD to $10,975 NZD

A
Cheapest Retailer
-
$5,009 NZD
A
Retailer 2
-
$5,210 NZD
View
A
Retailer 3
-
$5,969 NZD
View
A
Retailer 4
-
$6,020 NZD
View
A
Retailer 5
-
$6,074 NZD
View
Final sale: no returns
A
Retailer 6
-
$6,139 NZD
View
A
Retailer 7
-
$6,395 NZD
View
B+
Retailer 8
-
$6,404 NZD
View
B+
Retailer 9
-
$6,815 NZD
View
B+
Retailer 10
-
$6,842 NZD
View
B+
Retailer 11
-
$6,945 NZD
View
B+
Retailer 12
-
$6,976 NZD
View
B+
Retailer 13
-
$7,208 NZD
View
Retailer 14
-
$7,472 NZD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$7,661 NZD
View
B+
Retailer 16
-
$8,033 NZD
View
B
Retailer 17
-
$10,975 NZD
View
Most Expensive
Queensmith
1558124148 · Oct 28
$12,417 NZD
£5,420 GBP
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from $5,009 NZDSave up to $5,965 NZD

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
$5,009 NZD