Oval|Lab Grown|IGI

4.09ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG492112263

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG492112263

Diamond specifications and retailer prices

From $1,267 USD
HK$9,900 HKD
As of October 24, 2026
15 retailers carry this diamond
Most expensive: $4,550 USD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 4.09ct lab-grown oval diamond

This 4.09ct lab-grown oval 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 LG492112263 or 492112263. Listed at 15 retailers as of October 24, 2026. 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

4.09
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492112263
Dimensions12.59 × 9.01 × 5.70 mm
L/W Ratio1.40
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
12.59 mm9.01 mm4.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492112263
Side View
Table 59.5%Crown 35.3°Girdle: STK-THKPavilion 41.3°Culet: NoneDepth 63.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 24
Current: $4,550 USD|Low: $755 USD|High: $4,690 USD|Avg: $2,071 USD|+0.9%
Brilliant Earth
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
October 22, 2026
Retailer 11$944 USD
Retailer 3$1,027 USD
Retailer 4$1,057 USD
Retailer 12$1,095 USD
Retailer 10$1,320 USD
Retailer 6$1,407 USD
Retailer 2$1,704 USD
Retailer 7$1,738 USD
Retailer 13$1,753 USD
Retailer 9$2,360 USD
Retailer 14$3,079 USD
Retailer 5$3,676 USD
Retailer 8$3,734 USD
Brilliant Earth$4,550 USD

33 data points across 14 retailers

15 retailers

Retailer 1
-
$944 USD
Price last confirmed 10 days ago
Retailer 2
-
$1,027 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$1,095 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$1,095 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$1,267 USD
HK$9,900 HKD
View
Retailer 6
-
$1,320 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$1,407 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$1,704 USD
£1,342 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
$1,753 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$2,264 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$2,360 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$3,079 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$3,676 USD
SGD 4,967 SGD
View
Price last confirmed 10 days ago
Retailer 14
-
$3,734 USD
£2,940 GBP
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
19055600A · Oct 21
$4,550 USD
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $1,267 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.

B+
4.09ct Oval
$1,267 USD