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Round|Lab Grown|IGI

2.51ct K VS1 Round Lab Grown Diamond

EX • K/VS1 • IGI LG490175062

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490175062

Diamond specifications and retailer prices

From $7,418 AUD
As of November 5, 2026
Save $10,045 AUD (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $22,269 AUD at Cape Diamonds · As of November 3, 2026
View at Cape Diamonds

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown 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 IGI LG490175062 or 490175062. Listed at 10 retailers as of November 5, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.51
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490175062
Dimensions8.62 × 8.57 × 5.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.62 mm8.57 mm2.51 ctK / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490175062
Side View
Table 55.0%Crown 35.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $22,269 AUD|Low: $7,123 AUD|High: $30,796 AUD|Avg: $14,528 AUD|-5.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$7,418 AUD
Retailer 7$8,605 AUD
Retailer 9$8,605 AUD
Retailer 5$8,628 AUD
Retailer 10$9,192 AUD
Retailer 4$10,791 AUD
Retailer 8$13,296 AUD
Retailer 2$17,463 AUD
Retailer 3$19,773 AUD
Cape Diamonds$22,269 AUD
Retailer 11$30,796 AUD

20 data points across 11 retailers

10 retailers$7,418 AUD to $17,463 AUD

B
Cheapest Retailer
-
$7,418 AUD
B
Retailer 2
-
$7,775 AUD
View
B
Retailer 3
-
$8,605 AUD
View
Retailer 4
-
$8,605 AUD
View
Price last confirmed 25 days ago
B
Retailer 5
-
$8,628 AUD
View
B
Retailer 6
-
$10,215 AUD
View
B
Retailer 7
-
$10,791 AUD
View
B
Retailer 8
-
$13,296 AUD
View
B
Retailer 9
-
$17,463 AUD
View
Most Expensive
Cape Diamonds
cert_490175062 · Nov 3
$22,269 AUD
ZAR 251,847 ZAR
View
Price under review
9 more retailers have this diamond
Prices start from $7,418 AUDSave up to $10,045 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.

B
2.51ct Round
$7,418 AUD