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0.51ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG706572817

Shape and cutting style on the report: Round brilliant

Certificate IGI LG706572817

Diamond specifications and retailer prices

From €81 EUR
$90 USD
As of November 1, 2026
Save €653 EUR (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €733 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG706572817 or 706572817. Listed at 12 retailers as of November 1, 2026, with prices from €81 to €733, a €653 spread on the same certified stone. MOH London lists it at €733. 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

0.51
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706572817
Dimensions5.10 × 5.07 × 3.18 mm
L/W Ratio1.01
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
5.10 mm5.07 mm0.51 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706572817
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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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: Nov 1
Current: €733 EUR|Low: €77 EUR|High: €740 EUR|Avg: €229 EUR|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 7€81 EUR
Retailer 9€93 EUR
Retailer 10€106 EUR
Retailer 2€107 EUR
Retailer 3€136 EUR
Retailer 5€188 EUR
Retailer 6€216 EUR
Retailer 8€224 EUR
Retailer 4€264 EUR
Retailer 12€308 EUR
Retailer 11€320 EUR
MOH London€733 EUR

25 data points across 12 retailers

12 retailers€81 EUR to €733 EUR

A
Cheapest Retailer
-
€81 EUR
$90 USD
A
Retailer 2
-
€93 EUR
$104 USD
View
Retailer 3
-
€106 EUR
$118 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
€107 EUR
$119 USD
View
B+
Retailer 5
-
€136 EUR
$152 USD
View
A
Retailer 6
-
€188 EUR
$210 USD
View
B+
Retailer 7
-
€216 EUR
$241 USD
View
B+
Retailer 8
-
€224 EUR
$250 USD
View
B+
Retailer 9
-
€308 EUR
$344 USD
View
B+
Retailer 10
-
€320 EUR
$357 USD
View
Retailer 11
-
€321 EUR
$359 USD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
LG706572817 · Nov 1
€733 EUR
£645 GBP
View
11 more retailers have this diamond
Prices start from €81 EURSave up to €653 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
0.51ct Round
€81 EUR