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1.27ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG644405299

Certificate IGI LG644405299

Diamond specifications and retailer prices

From $272 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: $272 USD at Loose Grown Diamond
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Loose Grown Diamond

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644405299 or 644405299. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.27
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
Polish
Symmetry
Fluorescence
OriginLab Grown
Grading LabIGI
CertificateIGI LG644405299
Dimensions6.86 × 6.90 × 4.28 mm
L/W Ratio1.01
Top View
6.86 mm6.90 mm1.27 ctE / SI1
OriginLab Grown
CutExcellent
CertificateIGI LG644405299
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 62.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: $272 USD|Low: $89 USD|High: $482 USD|Avg: $318 USD|-35.2%
September 18, 2026
Loose Grown Diamond$272 USD

9 data points across 1 retailer

1 retailer

B
Loose Grown Diamond
644405299 · Nov 1
$272 USD
View

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.

B
1.27ct Round
$272 USD