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Round|Lab Grown|IGI

2.61ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG817693186

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817693186

Diamond specifications and retailer prices

From $270 USD
As of November 1, 2026
Save $1,074 USD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,349 USD at Michael Trio · As of October 12, 2026
View at Michael Trio

About this 2.61ct lab-grown round diamond

This 2.61ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817693186 or 817693186. Listed at 8 retailers as of November 1, 2026, with a 398% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.61
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817693186
Dimensions8.94 × 8.98 × 5.31 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
8.94 mm8.98 mm2.61 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817693186
Side View
Table 59.0%Crown 33.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 59.3%

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: Nov 1
Current: $1,349 USD|Low: $270 USD|High: $1,359 USD|Avg: $865 USD
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 6$270 USD
Retailer 4$548 USD
Retailer 7$716 USD
Retailer 3$1,030 USD
Retailer 5$1,030 USD
Retailer 2$1,344 USD
Michael Trio$1,349 USD

27 data points across 7 retailers

8 retailers$270 USD to $1,344 USD

A
Cheapest Retailer
-
$270 USD
A
Retailer 2
-
$548 USD
€522 EUR
View
A
Retailer 3
-
$716 USD
View
B+
Retailer 4
-
$1,030 USD
View
B+
Retailer 5
-
$1,030 USD
View
B+
Retailer 6
-
$1,078 USD
View
B+
Retailer 7
-
$1,344 USD
£1,058 GBP
View
Most Expensive
Michael Trio
9103896540 · Oct 12
$1,349 USD
SGD 1,823 SGD
View
Price last confirmed 22 days ago
7 more retailers have this diamond
Prices start from $270 USDSave up to $1,074 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
2.61ct Round
$270 USD