Princess|Lab Grown|IGI

2.51ct I VS1 Princess Lab Grown Diamond

ID • I/VS1 • IGI LG510161632

Shape and cutting style on the report: Princess cut

Certificate IGI LG510161632

Diamond specifications and retailer prices

From $611 USD
As of October 30, 2026
Save $886 USD (59%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,497 USD at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct lab-grown princess diamond

This 2.51ct lab-grown princess sits in the two to three carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG510161632 or 510161632. Listed at 4 retailers as of October 26, 2026, with prices from $611 to $1,497, a $886 spread on the same certified stone. MOH London lists it at $1,497. 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
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG510161632
Dimensions7.35 × 7.30 × 5.44 mm
L/W Ratio1.01
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.35 mm7.30 mm2.51 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG510161632
Side View
Table 75.0%Crown 45.9°Girdle: MediumPavilion 41.4°Culet: NoneDepth 74.5%

Caratlytics Score

How it works →
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 30
Current: $1,497 USD|Low: $502 USD|High: $2,960 USD|Avg: $1,745 USD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 26, 2026
Retailer 3$611 USD
Retailer 4$616 USD
Retailer 2$1,247 USD
MOH London$1,497 USD
Retailer 5$2,440 USD
Retailer 6$2,440 USD
Retailer 7$2,960 USD

12 data points across 7 retailers

4 retailers$611 USD to $1,497 USD

B+
Cheapest Retailer
-
$611 USD
A
Retailer 2
-
$616 USD
View
B+
Retailer 3
-
$1,247 USD
View
Most Expensive
B+
MOH London
LG510161632 · Oct 26
$1,497 USD
£1,179 GBP
View
3 more retailers have this diamond
Prices start from $611 USDSave up to $886 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 Princess
$611 USD