Round|Lab Grown|IGI

4.27ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG804610007

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804610007

Diamond specifications and retailer prices

From $524 USD
As of October 29, 2026
Save $2,204 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,728 USD at MOH London · As of October 29, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG804610007 or 804610007. Listed at 10 retailers as of October 29, 2026, with prices from $524 to $2,728, a $2,204 spread on the same certified stone. MOH London lists it at $2,728. 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

4.27
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804610007
Dimensions10.44 × 10.50 × 6.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.44 mm10.50 mm4.27 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804610007
Side View
Table 62.0%Crown 32.3°Girdle: Slightly ThickPavilion 40.7°Culet: NoneDepth 59.4%

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: Oct 29
Current: $2,728 USD|Low: $515 USD|High: $3,101 USD|Avg: $1,587 USD|-12.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 8$524 USD
Retailer 7$587 USD
Retailer 10$727 USD
Retailer 2$993 USD
Retailer 11$1,055 USD
Retailer 3$1,126 USD
Retailer 5$1,678 USD
Retailer 6$1,680 USD
Retailer 9$1,710 USD
Retailer 12$2,565 USD
Retailer 4$2,699 USD
MOH London$2,728 USD

28 data points across 12 retailers

10 retailers$524 USD to $2,728 USD

A
Cheapest Retailer
-
$524 USD
A
Retailer 2
-
$587 USD
View
Retailer 3
-
$727 USD
£573 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
$993 USD
€946 EUR
View
A
Retailer 5
-
$1,055 USD
View
B
Retailer 6
-
$1,678 USD
View
B
Retailer 7
-
$1,680 USD
View
B+
Retailer 8
-
$1,710 USD
View
Retailer 9
-
$2,565 USD
SGD 3,466 SGD
View
Price last confirmed 18 days ago
Most Expensive
B
MOH London
LG804610007 · Oct 29
$2,728 USD
£2,148 GBP
View
9 more retailers have this diamond
Prices start from $524 USDSave up to $2,204 USD

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
$524 USD