CaratHunter
Plans
Round|Lab Grown|IGI

1.02ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • IGI LG301781233

Shape and cutting style on the report: Round brilliant

Certificate IGI LG301781233

Diamond specifications and retailer prices

From €321 EUR
As of November 6, 2026
Save €356 EUR (53%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €677 EUR at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 1.02ct lab-grown round diamond

This 1.02ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG301781233 or 301781233. Listed at 2 retailers as of November 5, 2026, with prices from €321 to €677, a €356 spread on the same certified stone. Brilliant Earth lists it at €677. 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

1.02
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG301781233
Dimensions6.47 × 6.50 × 3.90 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
6.47 mm6.50 mm1.02 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG301781233
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.1%

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 6
Current: €677 EUR|Low: €247 EUR|High: €24,258 EUR|Avg: €4,056 EUR|-2.6%
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3€260 EUR
Retailer 2€321 EUR
Brilliant Earth€677 EUR

13 data points across 3 retailers

2 retailers€321 EUR to €677 EUR

B+
Cheapest Retailer
-
€321 EUR
Most Expensive
B
Brilliant Earth
16335515A · Nov 5
€677 EUR
$760 USD
View
1 more retailer has this diamond
Prices start from €321 EURSave up to €356 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+
1.02ct Round
€321 EUR