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Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6541936606

Certificate GIA 6541936606

Diamond specifications and retailer prices

From $16,126 AUD
As of November 5, 2026
Save $12,562 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $28,688 AUD at MOH London · As of November 2, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6541936606. Listed at 12 retailers as of November 2, 2026, with prices from $16,126 to $28,688, a $12,562 spread on the same certified stone. MOH London lists it at $28,688. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6541936606
Dimensions8.61 × 8.67 × 5.47 mm
L/W Ratio1.01
Top View
8.61 mm8.67 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541936606
Side View
Table 56.0%Crown 36°Girdle: MediumPavilion 41.2°Culet: NoneDepth 63.3%

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 5
Current: $28,688 AUD|Low: $16,126 AUD|High: $29,522 AUD|Avg: $21,761 AUD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 7$16,126 AUD
Retailer 11$18,519 AUD
Retailer 9$18,810 AUD
Retailer 5$19,273 AUD
Retailer 10$19,899 AUD
Retailer 2$20,585 AUD
Retailer 6$22,272 AUD
Retailer 3$22,515 AUD
Retailer 4$25,223 AUD
Retailer 8$26,022 AUD
MOH London$28,688 AUD

27 data points across 11 retailers

12 retailers$16,126 AUD to $28,688 AUD

A
Cheapest Retailer
-
$16,126 AUD
Retailer 2
-
$17,242 AUD
View
Price last confirmed 50 days ago
A
Retailer 3
-
$18,519 AUD
View
A
Retailer 4
-
$18,810 AUD
View
A
Retailer 5
-
$19,273 AUD
View
A
Retailer 6
-
$19,899 AUD
View
A
Retailer 7
-
$20,585 AUD
View
A
Retailer 8
-
$22,272 AUD
View
A
Retailer 9
-
$22,515 AUD
View
B+
Retailer 10
-
$25,223 AUD
View
B+
Retailer 11
-
$26,022 AUD
View
Most Expensive
B+
MOH London
671605899 · Nov 2
$28,688 AUD
£15,813 GBP
View
11 more retailers have this diamond
Prices start from $16,126 AUDSave up to $12,562 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
$16,126 AUD