Round|Lab Grown|IGI

0.51ct H IF Round Lab Grown Diamond

ID • H/IF • IGI LG639448988

Shape and cutting style on the report: Round brilliant

Certificate IGI LG639448988

Diamond specifications and retailer prices

From €107 EUR
$119 USD
As of October 29, 2026
Save €997 EUR (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,104 EUR at MOH London · As of October 25, 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG639448988 or 639448988. Listed at 17 retailers as of October 25, 2026, with prices from €107 to €1,104, a €997 spread on the same certified stone. MOH London lists it at €1,104. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
H
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639448988
Dimensions5.20 × 5.17 × 3.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.20 mm5.17 mm0.51 ctH / IF
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG639448988
Side View
Table 60.0%Crown 36°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 59.7%

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: €1,104 EUR|Low: €91 EUR|High: €1,115 EUR|Avg: €284 EUR|-0.9%
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
October 30, 2026
Retailer 10€107 EUR
Retailer 4€119 EUR
Retailer 9€124 EUR
Retailer 14€141 EUR
Retailer 15€141 EUR
Retailer 6€179 EUR
Retailer 13€188 EUR
Retailer 12€238 EUR
Retailer 11€258 EUR
Retailer 3€320 EUR
Retailer 8€322 EUR
Retailer 5€337 EUR
Retailer 7€389 EUR
Retailer 2€424 EUR
MOH London€1,104 EUR

28 data points across 15 retailers

17 retailers€107 EUR to €1,104 EUR

A
Cheapest Retailer
-
€107 EUR
$119 USD
A
Retailer 2
-
€119 EUR
$133 USD
View
Final sale: no returns
A
Retailer 3
-
€124 EUR
$138 USD
View
A
Retailer 4
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€141 EUR
$157 USD
View
A
Retailer 5
-
€141 EUR
$157 USD
View
A
Retailer 6
-
€179 EUR
$200 USD
View
Retailer 7
-
€188 EUR
$210 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
€238 EUR
ZAR 4,303 ZAR
View
A
Retailer 9
-
€258 EUR
View
A
Retailer 10
-
€320 EUR
$357 USD
View
A
Retailer 11
-
€322 EUR
$360 USD
View
A
Retailer 12
-
€337 EUR
$376 USD
View
Retailer 13
-
€376 EUR
$420 USD
View
Price last confirmed 20 days ago
B+
Retailer 14
-
€397 EUR
$444 USD
View
B+
Retailer 15
-
€424 EUR
$474 USD
View
B+
Retailer 16
-
€475 EUR
$531 USD
View
Most Expensive
B
MOH London
LG639448988 · Oct 25
€1,104 EUR
£971 GBP
View
16 more retailers have this diamond
Prices start from €107 EURSave up to €997 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
€107 EUR