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Oval|Lab Grown|IGI

2.51ct G SI1 Oval Lab Grown Diamond

GD • G/SI1 • IGI LG468194054

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG468194054

Diamond specifications and retailer prices

From $1,649 USD
As of November 1, 2026
Save $1,937 USD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,494 USD at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct lab-grown oval diamond

This 2.51ct lab-grown oval sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG468194054 or 468194054. Listed at 8 retailers as of October 31, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG468194054
Dimensions10.66 × 7.68 × 4.77 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.66 mm7.68 mm2.51 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG468194054
Side View
Table 58.0%Crown 38.2°Girdle: THN-STKPavilion 38.6°Culet: NoneDepth 62.1%

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 1
Current: $5,494 USD|Low: $1,583 USD|High: $6,848 USD|Avg: $3,001 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 2$1,649 USD
Retailer 12$1,761 USD
Retailer 9$1,795 USD
Retailer 6$1,913 USD
Retailer 10$1,913 USD
Retailer 3$2,085 USD
Retailer 5$2,780 USD
Retailer 4$2,860 USD
Retailer 7$3,008 USD
Retailer 11$3,249 USD
Retailer 8$3,586 USD
MOH London$5,494 USD
Retailer 13$6,848 USD

15 data points across 13 retailers

8 retailers$1,649 USD to $3,586 USD

B
Cheapest Retailer
-
$1,649 USD
B
Retailer 2
-
$1,761 USD
View
B
Retailer 3
-
$1,795 USD
View
B
Retailer 4
-
$1,913 USD
View
C
Retailer 5
-
$3,008 USD
View
C
Retailer 6
-
$3,249 USD
CA$4,512 CAD
View
C
Retailer 7
-
$3,586 USD
View
Most Expensive
MOH London
LG468194054 · Oct 29
$5,494 USD
£4,326 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $1,649 USDSave up to $1,937 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.

B
2.51ct Oval
$1,649 USD