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Marquise|Natural|GIA

1.30ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 2557345495

Certificate GIA 2557345495

Diamond specifications and retailer prices

From $8,140 AUD
As of November 5, 2026
Save $9,290 AUD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $17,430 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural marquise diamond

This 1.3ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557345495. Listed at 22 retailers as of November 5, 2026, with prices from $8,140 to $17,430, a $9,290 spread on the same certified stone. NZ Jewellers lists it at $17,430. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557345495
Dimensions10.24 × 5.64 × 3.60 mm
L/W Ratio1.82
Girdle conditionThick to Extremely Thick
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Cavity, Indented Natural
Top View
10.24 mm5.64 mm1.30 ctG / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceFaint
CertificateGIA 2557345495
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $17,430 AUD|Low: $6,868 AUD|High: $17,430 AUD|Avg: $10,908 AUD
NZ Jewellers
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
November 7, 2026
Retailer 6$8,013 AUD
Retailer 11$8,240 AUD
Retailer 12$8,713 AUD
Retailer 9$9,357 AUD
Retailer 7$9,438 AUD
Retailer 3$9,441 AUD
Retailer 13$9,441 AUD
Retailer 14$9,441 AUD
Retailer 2$9,895 AUD
Retailer 8$10,707 AUD
Retailer 4$10,894 AUD
Retailer 10$14,484 AUD
Retailer 5$15,109 AUD
NZ Jewellers$17,430 AUD

43 data points across 14 retailers

22 retailers$8,140 AUD to $17,430 AUD

Retailer 1
-
$8,013 AUD
Price last confirmed 15 days ago
B+
Retailer 2
-
$8,140 AUD
View
B+
Retailer 3
-
$8,233 AUD
View
B+
Retailer 4
-
$8,240 AUD
View
B+
Retailer 5
-
$8,344 AUD
View
B+
Retailer 6
-
$8,713 AUD
View
Final sale: no returns
B+
Retailer 7
-
$9,296 AUD
View
B+
Retailer 8
-
$9,357 AUD
View
B+
Retailer 9
-
$9,438 AUD
View
Retailer 10
-
$9,441 AUD
View
Price last confirmed 54 days ago
B+
Retailer 11
-
$9,441 AUD
View
B+
Retailer 12
-
$9,441 AUD
View
Retailer 13
-
$9,441 AUD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$9,636 AUD
View
B+
Retailer 15
-
$9,895 AUD
View
B
Retailer 16
-
$10,707 AUD
View
B
Retailer 17
-
$10,894 AUD
View
Retailer 18
-
$10,894 AUD
View
Price last confirmed 62 days ago
Retailer 19
-
$10,894 AUD
View
Price last confirmed 53 days ago
B
Retailer 20
-
$14,484 AUD
View
B
Retailer 21
-
$15,109 AUD
View
Most Expensive
C
NZ Jewellers
864877df-c0a7-4823-a0ff-2d5e4b72ed8f · Nov 5
$17,430 AUD
$11,976 USD
View
21 more retailers have this diamond
Prices start from $8,140 AUDSave up to $9,290 AUD

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.

B+
1.30ct Marquise
$8,140 AUD