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Round|Lab Grown|IGI

2.51ct G VVS1 Round Lab Grown Diamond

ID • G/VVS1 • IGI LG778663954

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778663954

Diamond specifications and retailer prices

From $655 AUD
$460 USD
As of October 29, 2026
Save $3,929 AUD (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,584 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778663954 or 778663954. Listed at 24 retailers as of October 29, 2026, with prices from $655 to $4,584, a $3,929 spread on the same certified stone. Brilliant Earth lists it at $4,584. 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
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778663954
Dimensions8.67 × 8.74 × 5.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
8.67 mm8.74 mm2.51 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778663954
Side View
Table 56.0%Crown 35.1°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.0%

Caratlytics Score

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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: Oct 29
Current: $4,584 AUD|Low: $629 AUD|High: $4,584 AUD|Avg: $1,896 AUD
Brilliant Earth
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
October 31, 2026
Retailer 14$655 AUD
Retailer 5$811 AUD
Retailer 13$1,011 AUD
Retailer 9$1,074 AUD
Retailer 6$1,089 AUD
Retailer 2$1,233 AUD
Retailer 7$1,341 AUD
Retailer 10$1,803 AUD
Retailer 8$1,852 AUD
Retailer 12$1,958 AUD
Retailer 4$2,850 AUD
Retailer 11$2,999 AUD
Retailer 3$3,538 AUD
Brilliant Earth$4,584 AUD

34 data points across 14 retailers

24 retailers$655 AUD to $4,584 AUD

A
Cheapest Retailer
-
$655 AUD
$460 USD
A
Retailer 2
-
$732 AUD
$514 USD
View
Final sale: no returns
A
Retailer 3
-
$733 AUD
$515 USD
View
A
Retailer 4
-
$811 AUD
$570 USD
View
Retailer 5
-
$811 AUD
$570 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$1,011 AUD
$710 USD
View
A
Retailer 7
-
$1,074 AUD
£594 GBP
View
A
Retailer 8
-
$1,089 AUD
$765 USD
View
A
Retailer 9
-
$1,206 AUD
$847 USD
View
A
Retailer 10
-
$1,233 AUD
€825 EUR
View
B+
Retailer 11
-
$1,341 AUD
£742 GBP
View
B+
Retailer 12
-
$1,624 AUD
$1,141 USD
View
B+
Retailer 13
-
$1,803 AUD
View
B+
Retailer 14
-
$1,852 AUD
$1,301 USD
View
B+
Retailer 15
-
$1,879 AUD
$1,320 USD
View
B+
Retailer 16
-
$1,958 AUD
ZAR 22,222 ZAR
View
B
Retailer 17
-
$2,609 AUD
$1,833 USD
View
B
Retailer 18
-
$2,654 AUD
$1,864 USD
View
B
Retailer 19
-
$2,850 AUD
$2,002 USD
View
B
Retailer 20
-
$2,880 AUD
$2,023 USD
View
B
Retailer 21
-
$2,999 AUD
£1,659 GBP
View
B
Retailer 22
-
$3,038 AUD
$2,134 USD
View
Retailer 23
-
$3,538 AUD
$2,485 USD
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
18124807A · Oct 31
$4,584 AUD
$3,220 USD
View
23 more retailers have this diamond
Prices start from $655 AUDSave up to $3,929 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
$655 AUD