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Round|Lab Grown|IGI

1.26ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG845673312

Shape and cutting style on the report: Round brilliant

Certificate IGI LG845673312

Diamond specifications and retailer prices

From €165 EUR
$185 USD
As of November 1, 2026
Save €397 EUR (71%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €562 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG845673312 or 845673312. Listed at 3 retailers as of October 31, 2026, with prices from €165 to €562, a €397 spread on the same certified stone. Brilliant Earth lists it at €562. 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
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845673312
Dimensions6.84 × 6.91 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.91 mm1.26 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845673312
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €562 EUR|Low: €165 EUR|High: €820 EUR|Avg: €468 EUR|-31.5%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3€165 EUR
Retailer 2€337 EUR
Brilliant Earth€562 EUR

12 data points across 3 retailers

3 retailers€165 EUR to €562 EUR

A
Cheapest Retailer
-
€165 EUR
$185 USD
Final sale: no returns
A
Retailer 2
-
€337 EUR
£298 GBP
View
Most Expensive
B+
Brilliant Earth
22211733A · Oct 31
€562 EUR
$630 USD
View
2 more retailers have this diamond
Prices start from €165 EURSave up to €397 EUR

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
€165 EUR