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Round|Lab Grown|IGI

1.30ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG771638784

Shape and cutting style on the report: Round brilliant

Certificate IGI LG771638784

Diamond specifications and retailer prices

From €376 EUR
$422 USD
As of October 30, 2026
Save €636 EUR (63%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €1,012 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct 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 very-good cut grade and certified by IGI LG771638784 or 771638784. Listed at 4 retailers as of October 29, 2026, with prices from €376 to €1,012, a €636 spread on the same certified stone. MOH London lists it at €1,012. 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

1.30
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771638784
Dimensions7.14 × 7.07 × 4.17 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.14 mm7.07 mm1.30 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG771638784
Side View
Table 64.0%Crown 33.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 58.7%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €1,012 EUR|Low: €354 EUR|High: €1,019 EUR|Avg: €515 EUR|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3€376 EUR
Retailer 4€382 EUR
Retailer 2€392 EUR
MOH London€1,012 EUR

36 data points across 4 retailers

4 retailers€376 EUR to €1,012 EUR

B+
Cheapest Retailer
-
€376 EUR
$422 USD
B+
Retailer 2
-
€382 EUR
$428 USD
View
B+
Retailer 3
-
€392 EUR
£346 GBP
View
Most Expensive
B
MOH London
LG771638784 · Oct 29
€1,012 EUR
£894 GBP
View
3 more retailers have this diamond
Prices start from €376 EURSave up to €636 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+
1.30ct Round
€376 EUR