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Round|Natural|IGI

2.51ct K IF Round Natural Diamond

EX • K/IF • IGI 737595422

Shape and cutting style on the report: Round brilliant

Certificate IGI 737595422

Diamond specifications and retailer prices

From $15,074 AUD
As of November 4, 2026
Save $7,852 AUD (34%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $22,926 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 737595422. Listed at 10 retailers as of November 4, 2026, with prices from $15,074 to $22,926, a $7,852 spread on the same certified stone. MOH London lists it at $22,926. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 737595422
Dimensions8.52 × 8.61 × 5.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
8.52 mm8.61 mm2.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 737595422
Side View
Table 56.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.6%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $22,926 AUD|Low: $13,614 AUD|High: $80,469 AUD|Avg: $20,334 AUD|-6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$14,054 AUD
Retailer 7$15,074 AUD
Retailer 6$15,374 AUD
Retailer 4$15,699 AUD
Retailer 10$16,318 AUD
Retailer 8$17,451 AUD
Retailer 2$17,843 AUD
Retailer 5$18,402 AUD
Retailer 3$20,210 AUD
MOH London$22,926 AUD

40 data points across 10 retailers

10 retailers$15,074 AUD to $22,926 AUD

A
Retailer 1
-
$14,054 AUD
Price last confirmed 7 days ago
A
Retailer 2
-
$15,074 AUD
View
A
Retailer 3
-
$15,374 AUD
View
A
Retailer 4
-
$15,699 AUD
View
Retailer 5
-
$16,318 AUD
View
Price last confirmed 25 days ago
A
Retailer 6
-
$17,451 AUD
View
A
Retailer 7
-
$17,843 AUD
View
A
Retailer 8
-
$18,402 AUD
View
A
Retailer 9
-
$20,210 AUD
View
Most Expensive
A
MOH London
D85FBF12C · Nov 4
$22,926 AUD
£12,637 GBP
View
9 more retailers have this diamond
Prices start from $15,074 AUDSave up to $7,852 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 Round
$15,074 AUD