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Round|Lab Grown|IGI

0.51ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG407936487

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407936487

Diamond specifications and retailer prices

From €287 EUR
$321 USD
As of November 1, 2026
Save €1,146 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,433 EUR at MOH London · As of October 29, 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG407936487 or 407936487. Listed at 13 retailers as of October 29, 2026, with prices from €287 to €1,433, a €1,146 spread on the same certified stone. MOH London lists it at €1,433. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407936487
Dimensions5.10 × 5.11 × 3.21 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
5.10 mm5.11 mm0.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407936487
Side View
Table 56.5%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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: Nov 1
Current: €1,433 EUR|Low: €276 EUR|High: €1,444 EUR|Avg: €704 EUR|-0.6%
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
Retailer 15
Retailer 16
Retailer 17
October 29, 2026
Retailer 12€287 EUR
Retailer 13€304 EUR
Retailer 3€320 EUR
Retailer 4€333 EUR
Retailer 14€356 EUR
Retailer 16€356 EUR
Retailer 5€509 EUR
Retailer 15€578 EUR
Retailer 10€644 EUR
Retailer 2€651 EUR
Retailer 6€685 EUR
Retailer 7€688 EUR
Retailer 11€1,044 EUR
Retailer 17€1,144 EUR
Retailer 8€1,391 EUR
Retailer 9€1,430 EUR
MOH London€1,433 EUR

23 data points across 17 retailers

13 retailers€287 EUR to €1,433 EUR

A
Cheapest Retailer
-
€287 EUR
$321 USD
A
Retailer 2
-
€304 EUR
$340 USD
View
A
Retailer 3
-
€320 EUR
$358 USD
View
Final sale: no returns
A
Retailer 4
-
€333 EUR
$372 USD
View
A
Retailer 5
-
€356 EUR
$398 USD
View
A
Retailer 6
-
€356 EUR
$398 USD
View
B+
Retailer 7
-
€578 EUR
$646 USD
View
B+
Retailer 8
-
€644 EUR
ZAR 11,618 ZAR
View
B+
Retailer 9
-
€651 EUR
View
B
Retailer 10
-
€1,044 EUR
$1,166 USD
View
B
Retailer 11
-
€1,144 EUR
$1,278 USD
View
B
Retailer 12
-
€1,391 EUR
£1,224 GBP
View
Most Expensive
B
MOH London
LG407936487 · Oct 29
€1,433 EUR
£1,261 GBP
View
12 more retailers have this diamond
Prices start from €287 EURSave up to €1,146 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
€287 EUR