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Round|Natural|GIA

2.81ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2557201585

Certificate GIA 2557201585

Diamond specifications and retailer prices

From $18,006 AUD
As of November 4, 2026
Save $14,484 AUD (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $32,490 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 2.81ct natural round diamond

This 2.81ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557201585. Listed at 19 retailers as of November 4, 2026, with prices from $18,006 to $32,490, a $14,484 spread on the same certified stone. MOH London lists it at $32,490. 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

2.81
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557201585
Dimensions9.02 × 8.98 × 5.61 mm
L/W Ratio1.00
Top View
9.02 mm8.98 mm2.81 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557201585
Side View
Table 60.0%Crown 33.5°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 62.3%

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 4
Current: $32,490 AUD|Low: $18,006 AUD|High: $35,324 AUD|Avg: $23,754 AUD|-7.9%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 5$18,006 AUD
Retailer 6$18,211 AUD
Retailer 8$19,016 AUD
Retailer 7$19,176 AUD
Retailer 4$19,518 AUD
Retailer 10$19,990 AUD
Retailer 16$20,463 AUD
Retailer 18$20,956 AUD
Retailer 13$21,463 AUD
Retailer 11$21,477 AUD
Retailer 19$22,250 AUD
Retailer 9$22,597 AUD
Retailer 15$22,722 AUD
Retailer 3$23,467 AUD
Retailer 2$23,870 AUD
Retailer 14$25,120 AUD
Retailer 12$28,643 AUD
Retailer 17$29,551 AUD
MOH London$32,490 AUD

28 data points across 19 retailers

19 retailers$18,006 AUD to $32,490 AUD

A
Cheapest Retailer
-
$18,006 AUD
A
Retailer 2
-
$18,211 AUD
View
A
Retailer 3
-
$19,016 AUD
View
A
Retailer 4
-
$19,176 AUD
View
A
Retailer 5
-
$19,518 AUD
View
A
Retailer 6
-
$19,990 AUD
View
Final sale: no returns
A
Retailer 7
-
$20,463 AUD
View
B+
Retailer 8
-
$20,956 AUD
View
A
Retailer 9
-
$21,463 AUD
View
Retailer 10
-
$21,477 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$22,250 AUD
View
B+
Retailer 12
-
$22,597 AUD
View
B+
Retailer 13
-
$22,722 AUD
View
B+
Retailer 14
-
$23,467 AUD
View
B+
Retailer 15
-
$23,870 AUD
View
B+
Retailer 16
-
$25,120 AUD
View
B
Retailer 17
-
$28,643 AUD
View
B
Retailer 18
-
$29,551 AUD
View
Most Expensive
B
MOH London
3E8451477 · Nov 4
$32,490 AUD
£17,909 GBP
View
18 more retailers have this diamond
Prices start from $18,006 AUDSave up to $14,484 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
2.81ct Round
$18,006 AUD