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Round|Lab Grown|IGI

1.25ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG772661061

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772661061

Diamond specifications and retailer prices

From $170 USD
As of November 1, 2026
Save $818 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $988 USD at MOH London · As of November 2, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG772661061 or 772661061. Listed at 14 retailers as of November 1, 2026, with prices from $170 to $988, a $818 spread on the same certified stone. MOH London lists it at $988. 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

1.25
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772661061
Dimensions6.94 × 6.91 × 4.23 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
6.94 mm6.91 mm1.25 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772661061
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.0%

Caratlytics Score

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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: $988 USD|Low: $164 USD|High: $1,017 USD|Avg: $425 USD|-2.9%
MOH London
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
November 4, 2026
Retailer 12$170 USD
Retailer 13$191 USD
Retailer 5$211 USD
Retailer 11$211 USD
Retailer 8$362 USD
Retailer 10$375 USD
Retailer 3$377 USD
Retailer 4$399 USD
Retailer 9$417 USD
Retailer 14$462 USD
Retailer 2$485 USD
Retailer 7$553 USD
Retailer 6$600 USD
MOH London$988 USD

34 data points across 14 retailers

14 retailers$170 USD to $988 USD

A
Cheapest Retailer
-
$170 USD
A
Retailer 2
-
$191 USD
View
Final sale: no returns
Retailer 3
-
$211 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$211 USD
View
A
Retailer 5
-
$362 USD
View
A
Retailer 6
-
$375 USD
View
A
Retailer 7
-
$377 USD
View
A
Retailer 8
-
$399 USD
View
A
Retailer 9
-
$417 USD
View
B+
Retailer 10
-
$462 USD
View
B+
Retailer 11
-
$485 USD
View
B+
Retailer 12
-
$553 USD
View
B
Retailer 13
-
$600 USD
View
Most Expensive
B
MOH London
LG772661061 · Nov 2
$988 USD
£778 GBP
View
13 more retailers have this diamond
Prices start from $170 USDSave up to $818 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
1.25ct Round
$170 USD