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Round|Lab Grown|IGI

1.00ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG819616351

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819616351

Diamond specifications and retailer prices

From €132 EUR
$148 USD
As of October 30, 2026
Save €1,099 EUR (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,231 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct 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 LG819616351 or 819616351. Listed at 9 retailers as of October 29, 2026, with prices from €132 to €1,231, a €1,099 spread on the same certified stone. MOH London lists it at €1,231. 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

1.00
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819616351
Dimensions6.42 × 6.45 × 3.95 mm
L/W Ratio1.00
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
6.42 mm6.45 mm1.00 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819616351
Side View
Table 55.0%Crown 34.8°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 61.4%

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 30
Current: €1,231 EUR|Low: €115 EUR|High: €1,231 EUR|Avg: €344 EUR|+66.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 5€132 EUR
Retailer 2€247 EUR
Retailer 3€260 EUR
Retailer 6€278 EUR
Retailer 4€294 EUR
Retailer 9€376 EUR
Retailer 7€378 EUR
Retailer 8€430 EUR
MOH London€1,231 EUR

33 data points across 9 retailers

9 retailers€132 EUR to €1,231 EUR

A
Cheapest Retailer
-
€132 EUR
$148 USD
Final sale: no returns
A
Retailer 2
-
€247 EUR
£217 GBP
View
A
Retailer 3
-
€260 EUR
View
A
Retailer 4
-
€278 EUR
$311 USD
View
A
Retailer 5
-
€294 EUR
$329 USD
View
Retailer 6
-
€376 EUR
$420 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
€378 EUR
$422 USD
View
B+
Retailer 8
-
€430 EUR
$480 USD
View
Most Expensive
C
MOH London
LG819616351 · Oct 29
€1,231 EUR
£1,083 GBP
View
8 more retailers have this diamond
Prices start from €132 EURSave up to €1,099 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
1.00ct Round
€132 EUR