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Marquise|Natural|GIA

1.25ct G SI1 Marquise Natural Diamond

GD • G/SI1 • GIA 5241012358

Certificate GIA 5241012358

Diamond specifications and retailer prices

From $9,402 AUD
As of November 3, 2026
Save $990 AUD (10%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $10,392 AUD at Jared · As of November 2, 2026
View at Jared

About this 1.25ct natural marquise diamond

This 1.25ct natural marquise 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5241012358. Listed at 4 retailers as of November 2, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241012358
Dimensions10.59 × 5.75 × 3.94 mm
L/W Ratio1.84
Top View
10.59 mm5.75 mm1.25 ctG / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 5241012358
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 3
Current: $10,392 AUD|Low: $9,402 AUD|High: $10,392 AUD|Avg: $10,125 AUD
Jared
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2$9,402 AUD
Retailer 3$10,057 AUD
Retailer 4$10,057 AUD
Jared$10,392 AUD

4 data points across 4 retailers

4 retailers$9,402 AUD to $10,392 AUD

B
Cheapest Retailer
-
$9,402 AUD
B
Retailer 2
-
$10,057 AUD
View
B
Retailer 3
-
$10,057 AUD
View
Most Expensive
B
Jared
159704648 · Nov 2
$10,392 AUD
$7,140 USD
View
3 more retailers have this diamond
Prices start from $9,402 AUDSave up to $990 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
1.25ct Marquise
$9,402 AUD