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Round|Lab Grown|IGI

5.42ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG780667855

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780667855

Diamond specifications and retailer prices

From €5,468 EUR
$6,109 USD
As of October 29, 2026
Save €37,183 EUR (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €42,651 EUR at Mervis Diamond Importers · As of October 31, 2026
View at Mervis Diamond Importers

About this 5.42ct lab-grown round diamond

This 5.42ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780667855 or 780667855. Listed at 22 retailers as of October 29, 2026, with prices from €5,468 to €42,651, a €37,183 spread on the same certified stone. Mervis Diamond Importers lists it at €42,651. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.42
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780667855
Dimensions11.24 × 11.29 × 6.92 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
11.24 mm11.29 mm5.42 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780667855
Side View
Table 57.0%Crown 34.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
A+
Exceptional
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: Oct 29
Current: €42,651 EUR|Low: €5,468 EUR|High: €42,651 EUR|Avg: €12,645 EUR
Mervis Diamond Importers
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 20
November 1, 2026
Retailer 20€5,468 EUR
Retailer 17€5,730 EUR
Retailer 11€6,124 EUR
Retailer 12€6,343 EUR
Retailer 16€6,346 EUR
Retailer 18€7,542 EUR
Retailer 19€8,004 EUR
Retailer 4€8,312 EUR
Retailer 6€8,342 EUR
Retailer 2€8,762 EUR
Retailer 3€9,199 EUR
Retailer 15€11,054 EUR
Retailer 9€11,689 EUR
Retailer 14€14,072 EUR
Retailer 13€14,225 EUR
Retailer 5€17,458 EUR
Retailer 8€18,620 EUR
Retailer 10€24,009 EUR
Retailer 7€37,621 EUR
Mervis Diamond Importers€42,651 EUR

42 data points across 20 retailers

22 retailers€5,468 EUR to €42,651 EUR

A+
Cheapest Retailer
-
€5,468 EUR
$6,109 USD
A
Retailer 2
-
€5,730 EUR
$6,402 USD
View
A
Retailer 3
-
€6,124 EUR
$6,842 USD
View
Final sale: no returns
Retailer 4
-
€6,343 EUR
$7,086 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
€6,343 EUR
$7,086 USD
View
A
Retailer 6
-
€6,346 EUR
$7,090 USD
View
A
Retailer 7
-
€7,542 EUR
$8,426 USD
View
A
Retailer 8
-
€8,004 EUR
$8,942 USD
View
A
Retailer 9
-
€8,312 EUR
$9,286 USD
View
Retailer 10
-
€8,342 EUR
$9,320 USD
View
Price last confirmed 13 days ago
A
Retailer 11
-
€8,762 EUR
£7,708 GBP
View
A
Retailer 12
-
€9,199 EUR
$10,277 USD
View
A
Retailer 13
-
€11,054 EUR
View
A
Retailer 14
-
€11,689 EUR
$13,059 USD
View
A
Retailer 15
-
€14,072 EUR
£12,379 GBP
View
A
Retailer 16
-
€14,225 EUR
ZAR 256,733 ZAR
View
B+
Retailer 17
-
€16,139 EUR
$18,031 USD
View
B+
Retailer 18
-
€17,458 EUR
$19,504 USD
View
B+
Retailer 19
-
€18,620 EUR
$20,803 USD
View
B+
Retailer 20
-
€24,009 EUR
$26,823 USD
View
B
Retailer 21
-
€37,621 EUR
$42,030 USD
View
Most Expensive
B
Mervis Diamond Importers
1974989995 · Oct 31
€42,651 EUR
$47,650 USD
View
21 more retailers have this diamond
Prices start from €5,468 EURSave up to €37,183 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+
5.42ct Round
€5,468 EUR