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Marquise|Natural|GIA

2.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 6561016104

Certificate GIA 6561016104

Diamond specifications and retailer prices

From $40,120 AUD
₹2,677,803 INR
As of November 2, 2026
Save $16,691 AUD (29%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $56,811 AUD at Aurelinne · As of November 2, 2026
View at Aurelinne

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561016104. Listed at 15 retailers as of November 2, 2026, with prices from $40,120 to $56,811, a $16,691 spread on the same certified stone. Aurelinne lists it at $56,811. 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

2.51
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561016104
Dimensions14.69 × 7.00 × 4.05 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Etch Channel, Cavity
Top View
14.69 mm7.00 mm2.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561016104
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $56,811 AUD|Low: $40,120 AUD|High: $56,811 AUD|Avg: $48,938 AUD
Aurelinne
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 2, 2026
Retailer 2$40,120 AUD
Retailer 6$44,625 AUD
Retailer 11$45,976 AUD
Retailer 14$46,074 AUD
Retailer 9$46,290 AUD
Retailer 8$46,383 AUD
Retailer 10$47,656 AUD
Retailer 3$50,499 AUD
Retailer 13$51,340 AUD
Retailer 4$53,024 AUD
Retailer 7$53,636 AUD
Retailer 5$54,707 AUD
Retailer 12$56,219 AUD
Aurelinne$56,811 AUD

4 data points across 14 retailers

15 retailers$40,120 AUD to $56,811 AUD

A
Cheapest Retailer
-
$40,120 AUD
₹2,677,803 INR
A
Retailer 2
-
$43,459 AUD
View
A
Retailer 3
-
$44,625 AUD
$31,274 USD
View
Final sale: no returns
B+
Retailer 4
-
$45,976 AUD
$32,221 USD
View
A
Retailer 5
-
$46,074 AUD
£25,425 GBP
View
B+
Retailer 6
-
$46,290 AUD
$32,441 USD
View
B+
Retailer 7
-
$46,383 AUD
$32,506 USD
View
B+
Retailer 8
-
$47,656 AUD
$33,398 USD
View
B+
Retailer 9
-
$50,499 AUD
$35,391 USD
View
B+
Retailer 10
-
$51,340 AUD
£28,331 GBP
View
B+
Retailer 11
-
$53,024 AUD
$37,160 USD
View
B+
Retailer 12
-
$53,636 AUD
€35,799 EUR
View
B+
Retailer 13
-
$54,707 AUD
$38,340 USD
View
B
Retailer 14
-
$56,219 AUD
$39,399 USD
View
Most Expensive
B
Aurelinne
0d1a5f1f-16c5-4297-816d-6f5fd35c0c1a · Nov 2
$56,811 AUD
$39,814 USD
View
14 more retailers have this diamond
Prices start from $40,120 AUDSave up to $16,691 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.

A
2.51ct Marquise
$40,120 AUD