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Round|Natural|GIA

2.50ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2557988478

Certificate GIA 2557988478

Diamond specifications and retailer prices

From $17,423 NZD
A$15,068 AUD
As of November 6, 2026
1 retailer carries this diamond
Only listing: $17,423 NZD at GemTrove
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at GemTrove

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557988478. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

2.50
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557988478
Dimensions8.64 × 8.69 × 5.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Cavity, Pinpoint, Indented Natural, Natural
Top View
8.64 mm8.69 mm2.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557988478
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $17,423 NZD|Low: $13,776 NZD|High: $25,938 NZD|Avg: $18,069 NZD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 9, 2026
Retailer 6$13,776 NZD
Retailer 3$14,178 NZD
Retailer 5$17,006 NZD
Retailer 7$17,179 NZD
GemTrove$17,423 NZD
Retailer 2$18,748 NZD
Retailer 4$19,038 NZD
Retailer 8$25,938 NZD

6 data points across 8 retailers

1 retailer

B
GemTrove
GT-N-00937689-98 · Nov 6
$17,423 NZD
A$15,068 AUD
View

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
2.50ct Round
$17,423 NZD