CaratHunter
Plans
Round|Lab Grown|IGI

2.51ct G VVS1 Round Lab Grown Diamond

EX • G/VVS1 • IGI LG831640124

Shape and cutting style on the report: Round brilliant

Certificate IGI LG831640124

Diamond specifications and retailer prices

From $380 USD
As of October 29, 2026
Save $3,977 USD (91%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,950 USD at Brilliant Earth · As of October 26, 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 LG831640124 or 831640124. Listed at 22 retailers as of October 29, 2026, with a 1047% 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
G
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831640124
Dimensions8.61 × 8.65 × 5.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.61 mm8.65 mm2.51 ctG / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831640124
Side View
Table 57.0%Crown 36.1°Girdle: MediumPavilion 41.1°Culet: NoneDepth 63.2%

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: Oct 29
Current: $4,950 USD|Low: $363 USD|High: $4,950 USD|Avg: $1,515 USD
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 19$380 USD
Retailer 16$426 USD
Retailer 9$472 USD
Retailer 10$525 USD
Retailer 12$620 USD
Retailer 6$632 USD
Retailer 2$762 USD
Retailer 13$851 USD
Retailer 20$1,044 USD
Retailer 15$1,112 USD
Retailer 3$1,113 USD
Retailer 4$1,138 USD
Retailer 8$1,516 USD
Retailer 7$1,530 USD
Retailer 5$1,554 USD
Retailer 17$1,767 USD
Retailer 21$1,853 USD
Retailer 18$2,063 USD
Retailer 11$2,465 USD
Retailer 14$4,357 USD
Brilliant Earth$4,950 USD

35 data points across 21 retailers

22 retailers$380 USD to $4,357 USD

A
Cheapest Retailer
-
$380 USD
A
Retailer 2
-
$426 USD
View
A
Retailer 3
-
$469 USD
View
A
Retailer 4
-
$472 USD
View
A
Retailer 5
-
$525 USD
HK$4,100 HKD
View
A
Retailer 6
-
$620 USD
View
B+
Retailer 7
-
$632 USD
View
A
Retailer 8
-
$762 USD
€726 EUR
View
A
Retailer 9
-
$851 USD
£670 GBP
View
B+
Retailer 10
-
$1,044 USD
A$1,606 AUD
View
B+
Retailer 11
-
$1,112 USD
View
B+
Retailer 12
-
$1,113 USD
View
B+
Retailer 13
-
$1,138 USD
ZAR 18,378 ZAR
View
B
Retailer 14
-
$1,516 USD
View
B
Retailer 15
-
$1,530 USD
SGD 2,067 SGD
View
B
Retailer 16
-
$1,554 USD
View
B
Retailer 17
-
$1,767 USD
View
B
Retailer 18
-
$1,853 USD
£1,459 GBP
View
B
Retailer 19
-
$2,063 USD
View
Retailer 20
-
$2,465 USD
View
Price last confirmed 17 days ago
B
Retailer 21
-
$4,357 USD
View
Most Expensive
Brilliant Earth
21443829A · Oct 26
$4,950 USD
View
Price under review
21 more retailers have this diamond
Prices start from $380 USDSave up to $3,977 USD

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
$380 USD