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Oval|Lab Grown|IGI

1.83ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG514270728

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG514270728

Diamond specifications and retailer prices

From $337 SGD
$263 USD
As of October 28, 2026
Save $1,791 SGD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,128 SGD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.83ct lab-grown oval diamond

This 1.83ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514270728 or 514270728. Listed at 18 retailers as of October 28, 2026, with prices from $337 to $2,128, a $1,791 spread on the same certified stone. Brilliant Earth lists it at $2,128. 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

1.83
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514270728
Dimensions9.77 × 6.91 × 4.33 mm
L/W Ratio1.41
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
9.77 mm6.91 mm1.83 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514270728
Side View
Table 57.0%Crown 35.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.7%

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 28
Current: $2,128 SGD|Low: $378 SGD|High: $2,192 SGD|Avg: $1,040 SGD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8$378 SGD
Retailer 4$622 SGD
Retailer 5$689 SGD
Retailer 7$697 SGD
Retailer 9$772 SGD
Retailer 3$797 SGD
Retailer 6$1,286 SGD
Retailer 10$1,349 SGD
Retailer 2$1,685 SGD
Brilliant Earth$2,128 SGD

42 data points across 10 retailers

18 retailers$337 SGD to $2,128 SGD

A
Cheapest Retailer
-
$337 SGD
$263 USD
A
Retailer 2
-
$378 SGD
$295 USD
View
Final sale: no returns
A
Retailer 3
-
$391 SGD
$305 USD
View
A
Retailer 4
-
$418 SGD
$326 USD
View
A
Retailer 5
-
$418 SGD
$326 USD
View
A
Retailer 6
-
$459 SGD
HK$2,800 HKD
View
A
Retailer 7
-
$622 SGD
$485 USD
View
A
Retailer 8
-
$689 SGD
€512 EUR
View
B+
Retailer 9
-
$697 SGD
$544 USD
View
B+
Retailer 10
-
$772 SGD
$602 USD
View
A
Retailer 11
-
$797 SGD
£490 GBP
View
B+
Retailer 12
-
$833 SGD
$650 USD
View
B
Retailer 13
-
$1,286 SGD
$1,003 USD
View
B
Retailer 14
-
$1,345 SGD
$1,049 USD
View
B
Retailer 15
-
$1,349 SGD
View
B
Retailer 16
-
$1,396 SGD
$1,089 USD
View
Price last confirmed 73 days ago
B
Retailer 17
-
$1,685 SGD
£1,035 GBP
View
Most Expensive
B
Brilliant Earth
19055812A · Oct 28
$2,128 SGD
$1,660 USD
View
17 more retailers have this diamond
Prices start from $337 SGDSave up to $1,791 SGD

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
1.83ct Oval
$337 SGD