Princess|Lab Grown|IGI

2.51ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG739587959

Shape and cutting style on the report: Princess cut

Certificate IGI LG739587959

Diamond specifications and retailer prices

From $407 USD
As of November 2, 2026
Save $2,580 USD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,987 USD at Diamonds Direct · As of November 1, 2026
View at Diamonds Direct

About this 2.51ct lab-grown princess diamond

This 2.51ct lab-grown princess sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG739587959 or 739587959. Listed at 10 retailers as of November 1, 2026, with prices from $407 to $2,987, a $2,580 spread on the same certified stone. Diamonds Direct lists it at $2,987. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739587959
Dimensions7.56 × 7.30 × 5.24 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.56 mm7.30 mm2.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739587959
Side View
Table 69.0%Crown 44.1°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 71.8%

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: Nov 2
Current: $2,987 USD|Low: $391 USD|High: $2,987 USD|Avg: $1,191 USD
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$407 USD
Retailer 8$456 USD
Retailer 10$456 USD
Retailer 3$618 USD
Retailer 9$799 USD
Retailer 4$800 USD
Retailer 7$1,415 USD
Retailer 6$1,622 USD
Retailer 2$1,971 USD
Diamonds Direct$2,987 USD

41 data points across 10 retailers

10 retailers$407 USD to $2,987 USD

A
Cheapest Retailer
-
$407 USD
A
Retailer 2
-
$456 USD
View
Final sale: no returns
A
Retailer 3
-
$456 USD
View
A
Retailer 4
-
$618 USD
£486 GBP
View
A
Retailer 5
-
$799 USD
View
A
Retailer 6
-
$800 USD
View
B+
Retailer 7
-
$1,415 USD
View
B+
Retailer 8
-
$1,622 USD
View
B
Retailer 9
-
$1,971 USD
£1,552 GBP
View
Most Expensive
B
Diamonds Direct
1115533 · Nov 1
$2,987 USD
View
9 more retailers have this diamond
Prices start from $407 USDSave up to $2,580 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
$407 USD