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Round|Lab Grown|IGI

0.30ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • IGI LGF1Q81770

Certificate IGI LGF1Q81770

Diamond specifications and retailer prices

From €277 EUR
$310 USD
As of November 1, 2026
Save €619 EUR (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €897 EUR at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LGF1Q81770 or F1Q81770. Listed at 5 retailers as of October 30, 2026, with prices from €277 to €897, a €619 spread on the same certified stone. Diamond Exchange Canada lists it at €897. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.30
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGF1Q81770
Dimensions4.21 × 4.24 × 2.76 mm
L/W Ratio1.01
Top View
4.21 mm4.24 mm0.30 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LGF1Q81770
Side View
Table 56.5%CrownGirdle: 0PavilionCulet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €897 EUR|Low: €251 EUR|High: €897 EUR|Avg: €510 EUR
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 2€277 EUR
Retailer 3€389 EUR
Retailer 4€489 EUR
Diamond Exchange Canada€897 EUR

37 data points across 4 retailers

5 retailers€277 EUR to €897 EUR

B+
Cheapest Retailer
-
€277 EUR
$310 USD
B
Retailer 2
-
€389 EUR
£343 GBP
View
B
Retailer 3
-
€489 EUR
View
C
Retailer 4
-
€530 EUR
£466 GBP
View
Most Expensive
C
Diamond Exchange Canada
1872603983 · Oct 30
€897 EUR
CA$1,392 CAD
View
4 more retailers have this diamond
Prices start from €277 EURSave up to €619 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.

B+
0.30ct Round
€277 EUR