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Round|Lab Grown|IGI

2.51ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG788646509

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788646509

Diamond specifications and retailer prices

From $683 AUD
$480 USD
As of October 29, 2026
Save $2,920 AUD (81%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,819 AUD at Brilliant Earth · As of October 28, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788646509 or 788646509. Listed at 26 retailers as of October 29, 2026, with a 427% 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
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788646509
Dimensions8.75 × 8.79 × 5.32 mm
L/W Ratio1.00
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
Top View
8.75 mm8.79 mm2.51 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788646509
Side View
Table 60.0%Crown 32.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.6%

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: $10,819 AUD|Low: $683 AUD|High: $10,819 AUD|Avg: $2,496 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 7$683 AUD
Retailer 8$763 AUD
Retailer 19$764 AUD
Retailer 13$1,046 AUD
Retailer 4$1,063 AUD
Retailer 14$1,284 AUD
Retailer 21$1,321 AUD
Retailer 2$1,402 AUD
Retailer 9$1,420 AUD
Retailer 5$1,879 AUD
Retailer 18$1,916 AUD
Retailer 17$1,957 AUD
Retailer 11$2,072 AUD
Retailer 15$2,722 AUD
Retailer 6$2,762 AUD
Retailer 3$2,969 AUD
Retailer 20$3,168 AUD
Retailer 16$3,481 AUD
Retailer 10$3,603 AUD
Retailer 12$4,719 AUD
Brilliant Earth$10,819 AUD

30 data points across 21 retailers

26 retailers$683 AUD to $3,603 AUD

A
Cheapest Retailer
-
$683 AUD
$480 USD
A
Retailer 2
-
$763 AUD
$536 USD
View
Final sale: no returns
A
Retailer 3
-
$764 AUD
$537 USD
View
Retailer 4
-
$847 AUD
$595 USD
View
Price last confirmed 60 days ago
A
Retailer 5
-
$858 AUD
$603 USD
View
Retailer 6
-
$858 AUD
$603 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
$1,046 AUD
$735 USD
View
A
Retailer 8
-
$1,063 AUD
£588 GBP
View
A
Retailer 9
-
$1,236 AUD
€827 EUR
View
A
Retailer 10
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$1,284 AUD
View
A
Retailer 11
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$1,321 AUD
$928 USD
View
A
Retailer 12
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$1,402 AUD
£775 GBP
View
A
Retailer 13
-
$1,420 AUD
€950 EUR
View
B+
Retailer 14
-
$1,879 AUD
View
B+
Retailer 15
-
$1,916 AUD
$1,346 USD
View
B+
Retailer 16
-
$1,957 AUD
$1,375 USD
View
B+
Retailer 17
-
$2,072 AUD
ZAR 23,515 ZAR
View
B+
Retailer 18
-
$2,308 AUD
$1,621 USD
View
B+
Retailer 19
-
$2,722 AUD
$1,912 USD
View
B
Retailer 20
-
$2,762 AUD
$1,940 USD
View
B
Retailer 21
-
$2,969 AUD
$2,086 USD
View
B
Retailer 22
-
$3,168 AUD
$2,225 USD
View
Retailer 23
-
$3,481 AUD
View
B+
Retailer 24
-
$3,603 AUD
£1,993 GBP
View
Retailer 25
-
$4,719 AUD
$3,315 USD
View
Price last confirmed 23 days ago
Most Expensive
Brilliant Earth
20608687A · Oct 28
$10,819 AUD
$7,600 USD
View
Price under review
25 more retailers have this diamond
Prices start from $683 AUDSave up to $2,920 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
$683 AUD