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Marquise|Natural|GIA

1.26ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 1152904873

Certificate GIA 1152904873

Diamond specifications and retailer prices

From $13,245 AUD
As of November 6, 2026
Save $5,815 AUD (31%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $19,060 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.26ct natural marquise diamond

This 1.26ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1152904873. Listed at 5 retailers as of November 4, 2026, with prices from $13,245 to $19,060, a $5,815 spread on the same certified stone. MOH London lists it at $19,060. 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

1.26
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1152904873
Dimensions9.74 × 5.99 × 3.60 mm
L/W Ratio1.63
Girdle conditionFaceted
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Top View
9.74 mm5.99 mm1.26 ctE / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1152904873
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCuletDepth 60.2%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $19,060 AUD|Low: $13,244 AUD|High: $19,341 AUD|Avg: $15,546 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3$13,245 AUD
Retailer 5$13,436 AUD
Retailer 2$14,174 AUD
Retailer 4$15,414 AUD
MOH London$19,060 AUD

45 data points across 5 retailers

5 retailers$13,245 AUD to $19,060 AUD

B+
Cheapest Retailer
-
$13,245 AUD
Retailer 2
-
$13,436 AUD
View
Price last confirmed 14 days ago
B
Retailer 3
-
$14,174 AUD
View
B
Retailer 4
-
$15,414 AUD
View
Most Expensive
B
MOH London
F1197F22D · Nov 4
$19,060 AUD
£10,506 GBP
View
4 more retailers have this diamond
Prices start from $13,245 AUDSave up to $5,815 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+
1.26ct Marquise
$13,245 AUD