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2.61ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG519261635

Shape and cutting style on the report: Round brilliant

Certificate IGI LG519261635

Diamond specifications and retailer prices

From $688 USD
As of October 30, 2026
Save $985 USD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,673 USD at MOH London · As of October 26, 2026
View at MOH London

About this 2.61ct lab-grown round diamond

This 2.61ct 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 LG519261635 or 519261635. Listed at 5 retailers as of October 26, 2026, with prices from $688 to $1,673, a $985 spread on the same certified stone. MOH London lists it at $1,673. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519261635
Dimensions8.84 × 8.81 × 5.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.84 mm8.81 mm2.61 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519261635
Side View
Table 58.5%Crown 34.5°GirdlePavilion 40.8°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,673 USD|Low: $663 USD|High: $2,613 USD|Avg: $1,001 USD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 3$688 USD
Retailer 2$759 USD
Retailer 4$802 USD
Retailer 5$1,056 USD
MOH London$1,673 USD

37 data points across 5 retailers

5 retailers$688 USD to $1,673 USD

B+
Cheapest Retailer
-
$688 USD
A
Retailer 2
-
$759 USD
£598 GBP
View
A
Retailer 3
-
$802 USD
View
B+
Retailer 4
-
$1,056 USD
View
Most Expensive
B
MOH London
LG519261635 · Oct 26
$1,673 USD
£1,317 GBP
View
4 more retailers have this diamond
Prices start from $688 USDSave up to $985 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
$688 USD