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Round|Lab Grown|IGI

1.15ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG757504778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757504778

Diamond specifications and retailer prices

From €322 EUR
As of October 29, 2026
Save €554 EUR (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €876 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1.15ct lab-grown round diamond

This 1.15ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757504778 or 757504778. Listed at 7 retailers as of October 26, 2026, with prices from €322 to €876, a €554 spread on the same certified stone. MOH London lists it at €876. 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

1.15
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757504778
Dimensions6.74 × 6.72 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.74 mm6.72 mm1.15 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757504778
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: €876 EUR|Low: €312 EUR|High: €886 EUR|Avg: €433 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 6€322 EUR
Retailer 2€336 EUR
Retailer 5€337 EUR
Retailer 3€385 EUR
Retailer 7€398 EUR
Retailer 4€410 EUR
MOH London€876 EUR

41 data points across 7 retailers

7 retailers€322 EUR to €876 EUR

A
Cheapest Retailer
-
€322 EUR
A
Retailer 2
-
€336 EUR
£296 GBP
View
A
Retailer 3
-
€337 EUR
$377 USD
View
B+
Retailer 4
-
€385 EUR
$430 USD
View
Retailer 5
-
€398 EUR
$445 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
€410 EUR
$458 USD
View
Most Expensive
B
MOH London
LG757504778 · Oct 26
€876 EUR
£771 GBP
View
6 more retailers have this diamond
Prices start from €322 EURSave up to €554 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
1.15ct Round
€322 EUR