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Round|Lab Grown|IGI

4.27ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG835666864

Shape and cutting style on the report: Round brilliant

Certificate IGI LG835666864

Diamond specifications and retailer prices

From €3,128 EUR
HK$27,300 HKD
As of October 31, 2026
Save €9,663 EUR (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €12,791 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.27ct lab-grown round diamond

This 4.27ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG835666864 or 835666864. Listed at 13 retailers as of October 30, 2026, with prices from €3,128 to €12,791, a €9,663 spread on the same certified stone. Brilliant Earth lists it at €12,791. 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

4.27
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835666864
Dimensions10.38 × 10.43 × 6.44 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
10.38 mm10.43 mm4.27 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835666864
Side View
Table 55.0%Crown 34.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.9%

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 31
Current: €12,791 EUR|Low: €3,128 EUR|High: €21,590 EUR|Avg: €6,670 EUR|-40.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3€3,128 EUR
Retailer 2€3,458 EUR
Retailer 10€3,867 EUR
Retailer 7€4,102 EUR
Retailer 8€4,477 EUR
Retailer 5€5,474 EUR
Retailer 4€6,727 EUR
Retailer 11€6,866 EUR
Retailer 6€6,922 EUR
Retailer 9€8,974 EUR
Retailer 12€9,934 EUR
Brilliant Earth€12,791 EUR

17 data points across 12 retailers

13 retailers€3,128 EUR to €12,791 EUR

A
Cheapest Retailer
-
€3,128 EUR
HK$27,300 HKD
A
Retailer 2
-
€3,458 EUR
£3,042 GBP
View
A
Retailer 3
-
€3,867 EUR
$4,320 USD
View
A
Retailer 4
-
€4,102 EUR
View
A
Retailer 5
-
€4,477 EUR
$5,002 USD
View
A
Retailer 6
-
€5,474 EUR
ZAR 98,792 ZAR
View
B+
Retailer 7
-
€6,727 EUR
$7,515 USD
View
B+
Retailer 8
-
€6,866 EUR
$7,671 USD
View
B+
Retailer 9
-
€6,922 EUR
£6,089 GBP
View
B+
Retailer 10
-
€7,644 EUR
$8,540 USD
View
B+
Retailer 11
-
€8,974 EUR
$10,026 USD
View
B
Retailer 12
-
€9,934 EUR
$11,098 USD
View
Most Expensive
B
Brilliant Earth
21828737A · Oct 30
€12,791 EUR
$14,290 USD
View
12 more retailers have this diamond
Prices start from €3,128 EURSave up to €9,663 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
4.27ct Round
€3,128 EUR