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Round|Lab Grown|IGI

1.26ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG720547128

Shape and cutting style on the report: Round brilliant

Certificate IGI LG720547128

Diamond specifications and retailer prices

From $161 USD
As of November 1, 2026
Save $774 USD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $935 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.26ct lab-grown round diamond

This 1.26ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG720547128 or 720547128. Listed at 18 retailers as of November 1, 2026, with prices from $161 to $935, a $774 spread on the same certified stone. MOH London lists it at $935. 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

1.26
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720547128
Dimensions7.07 × 7.03 × 4.21 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
7.07 mm7.03 mm1.26 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720547128
Side View
Table 59.0%Crown 34°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.7%

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: $935 USD|Low: $155 USD|High: $950 USD|Avg: $431 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8$161 USD
Retailer 3$200 USD
Retailer 9$200 USD
Retailer 2$344 USD
Retailer 4$349 USD
Retailer 10$362 USD
Retailer 11$452 USD
Retailer 6$480 USD
Retailer 5$518 USD
Retailer 7$570 USD
MOH London$935 USD

43 data points across 11 retailers

18 retailers$161 USD to $935 USD

A
Cheapest Retailer
-
$161 USD
A
Retailer 2
-
$187 USD
View
Retailer 3
-
$200 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$200 USD
View
A
Retailer 5
-
$344 USD
€328 EUR
View
A
Retailer 6
-
$349 USD
£275 GBP
View
B+
Retailer 7
-
$362 USD
View
B+
Retailer 8
-
$439 USD
View
B+
Retailer 9
-
$452 USD
View
B+
Retailer 10
-
$470 USD
View
Retailer 11
-
$480 USD
View
Price last confirmed 12 days ago
Retailer 12
-
$496 USD
View
Price last confirmed 84 days ago
B+
Retailer 13
-
$518 USD
View
B+
Retailer 14
-
$570 USD
View
B+
Retailer 15
-
$589 USD
£464 GBP
View
B+
Retailer 16
-
$643 USD
View
B
Retailer 17
-
$697 USD
View
Most Expensive
B
MOH London
LG720547128 · Nov 1
$935 USD
£736 GBP
View
17 more retailers have this diamond
Prices start from $161 USDSave up to $774 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
1.26ct Round
$161 USD