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Round|Lab Grown|IGI

0.80ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG301781271

Shape and cutting style on the report: Round brilliant

Certificate IGI LG301781271

Diamond specifications and retailer prices

From €282 EUR
As of November 2, 2026
Save €235 EUR (46%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €517 EUR at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 0.8ct lab-grown round diamond

This 0.8ct lab-grown round sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG301781271 or 301781271. Listed at 2 retailers as of November 1, 2026, with prices from €282 to €517, a €235 spread on the same certified stone. Brilliant Earth lists it at €517. 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

0.80
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG301781271
Dimensions6.05 × 6.02 × 3.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANTThis Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
6.05 mm6.02 mm0.80 ctF / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG301781271
Side View
Table 59.5%Crown 33.4°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 59.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: €517 EUR|Low: €223 EUR|High: €526 EUR|Avg: €342 EUR|-1.7%
Brilliant Earth
Retailer 2
Retailer 3
November 2, 2026
Retailer 3€223 EUR
Retailer 2€282 EUR
Brilliant Earth€517 EUR

12 data points across 3 retailers

2 retailers€282 EUR to €517 EUR

A
Cheapest Retailer
-
€282 EUR
Most Expensive
B
Brilliant Earth
16335520A · Nov 1
€517 EUR
$580 USD
View
1 more retailer has this diamond
Prices start from €282 EURSave up to €235 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
0.80ct Round
€282 EUR