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Round|Lab Grown|IGI

2.50ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG700502179

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700502179

Diamond specifications and retailer prices

From $349 USD
As of November 1, 2026
Save $3,221 USD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,570 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round 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 LG700502179 or 700502179. Listed at 19 retailers as of October 31, 2026, with prices from $349 to $3,570, a $3,221 spread on the same certified stone. Brilliant Earth lists it at $3,570. 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

2.50
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700502179
Dimensions8.66 × 8.60 × 5.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm8.60 mm2.50 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700502179
Side View
Table 60.0%Crown 35.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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: Nov 1
Current: $3,570 USD|Low: $335 USD|High: $3,570 USD|Avg: $971 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
November 1, 2026
Retailer 13$349 USD
Retailer 3$391 USD
Retailer 7$409 USD
Retailer 4$433 USD
Retailer 6$433 USD
Retailer 9$585 USD
Retailer 11$695 USD
Retailer 15$764 USD
Retailer 14$803 USD
Retailer 8$864 USD
Retailer 10$1,270 USD
Retailer 5$1,537 USD
Retailer 12$1,663 USD
Retailer 2$1,868 USD
Brilliant Earth$3,570 USD

41 data points across 15 retailers

19 retailers$349 USD to $3,570 USD

Retailer 1
-
$349 USD
Price last confirmed 40 days ago
A
Retailer 2
-
$349 USD
View
A
Retailer 3
-
$391 USD
View
Final sale: no returns
Retailer 4
-
$427 USD
View
Price last confirmed 40 days ago
Retailer 5
-
$433 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$433 USD
View
A
Retailer 7
-
$585 USD
View
B+
Retailer 8
-
$695 USD
View
A
Retailer 9
-
$764 USD
View
A
Retailer 10
-
$803 USD
View
B+
Retailer 11
-
$864 USD
£680 GBP
View
B+
Retailer 12
-
$1,270 USD
View
Retailer 13
-
$1,537 USD
View
Price last confirmed 41 days ago
B
Retailer 14
-
$1,537 USD
View
B
Retailer 15
-
$1,663 USD
View
B
Retailer 16
-
$1,691 USD
View
B
Retailer 17
-
$1,868 USD
£1,471 GBP
View
B
Retailer 18
-
$3,100 USD
View
Most Expensive
B
Brilliant Earth
20952606Y · Oct 31
$3,570 USD
View
18 more retailers have this diamond
Prices start from $349 USDSave up to $3,221 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
2.50ct Round
$349 USD