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Round|Lab Grown|IGI

1.20ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG487108268

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487108268

Diamond specifications and retailer prices

From €706 EUR
$789 USD
As of October 29, 2026
Save €2,379 EUR (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €3,085 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487108268 or 487108268. Listed at 12 retailers as of October 29, 2026, with prices from €706 to €3,085, a €2,379 spread on the same certified stone. MOH London lists it at €3,085. 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

1.20
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487108268
Dimensions6.78 × 6.75 × 4.23 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.78 mm6.75 mm1.20 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487108268
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €3,085 EUR|Low: €678 EUR|High: €3,106 EUR|Avg: €1,277 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 8€706 EUR
Retailer 14€768 EUR
Retailer 13€790 EUR
Retailer 9€797 EUR
Retailer 10€819 EUR
Retailer 12€819 EUR
Retailer 6€923 EUR
Retailer 4€976 EUR
Retailer 5€1,271 EUR
Retailer 11€1,322 EUR
Retailer 2€1,368 EUR
Retailer 7€1,947 EUR
Retailer 3€2,302 EUR
MOH London€3,085 EUR

41 data points across 14 retailers

12 retailers€706 EUR to €3,085 EUR

A
Cheapest Retailer
-
€706 EUR
$789 USD
A
Retailer 2
-
€768 EUR
$858 USD
View
A
Retailer 3
-
€790 EUR
$883 USD
View
Final sale: no returns
A
Retailer 4
-
€797 EUR
$890 USD
View
A
Retailer 5
-
€819 EUR
$915 USD
View
Retailer 6
-
€819 EUR
$915 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
€976 EUR
$1,090 USD
View
B+
Retailer 8
-
€1,322 EUR
$1,477 USD
View
B+
Retailer 9
-
€1,368 EUR
£1,203 GBP
View
B
Retailer 10
-
€1,947 EUR
$2,175 USD
View
B
Retailer 11
-
€2,302 EUR
$2,572 USD
View
Most Expensive
B
MOH London
LG487108268 · Oct 29
€3,085 EUR
£2,714 GBP
View
11 more retailers have this diamond
Prices start from €706 EURSave up to €2,379 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
1.20ct Round
€706 EUR