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1.25ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 2487719162

Certificate GIA 2487719162

Diamond specifications and retailer prices

From $11,902 AUD
£6,583 GBP
As of October 28, 2026
Save $747 AUD (6%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $12,648 AUD at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2487719162. Listed at 2 retailers as of October 28, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.25
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2487719162
Dimensions6.84 × 6.89 × 4.23 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Cert comments
Additional twinning wisps, pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp
Top View
6.84 mm6.89 mm1.25 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2487719162
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°CuletDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $6,791 AUD|Low: $6,791 AUD|High: $6,791 AUD|Avg: $6,791 AUD
February 18, 2026
Retailer 1$6,791 AUD

1 data point across 1 retailer

2 retailers$11,902 AUD to $12,648 AUD

B
Cheapest Retailer
-
$11,902 AUD
£6,583 GBP
Most Expensive
B
Diamond Quarter
1.25SI2D2462D26BN · Oct 29
$12,648 AUD
£6,996 GBP
View
1 more retailer has this diamond
Prices start from $11,902 AUDSave up to $747 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 Round
$11,902 AUD