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Oval|Lab Grown|IGI

1.55ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG440013405

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG440013405

Diamond specifications and retailer prices

From $860 USD
As of October 31, 2026
Save $4,154 USD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,014 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440013405 or 440013405. Listed at 11 retailers as of October 29, 2026, with prices from $860 to $5,014, a $4,154 spread on the same certified stone. MOH London lists it at $5,014. 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

1.55
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440013405
Dimensions9.14 × 6.51 × 4.11 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.14 mm6.51 mm1.55 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440013405
Side View
Table 57.0%Crown 34.8°Girdle: STK-THKPavilion 40.9°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
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 31
Current: $5,014 USD|Low: $860 USD|High: $5,053 USD|Avg: $2,165 USD|-0.5%
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 30, 2026
Retailer 2$860 USD
Retailer 6$1,338 USD
Retailer 10$1,456 USD
Retailer 7$1,552 USD
Retailer 11$1,552 USD
Retailer 12$1,725 USD
Retailer 4$2,133 USD
Retailer 5$2,223 USD
Retailer 8$2,453 USD
Retailer 3$2,893 USD
Retailer 9$2,909 USD
MOH London$5,014 USD

36 data points across 12 retailers

11 retailers$860 USD to $5,014 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,338 USD
View
B+
Retailer 3
-
$1,456 USD
View
Retailer 4
-
$1,552 USD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
$1,552 USD
View
B+
Retailer 6
-
$1,725 USD
View
B+
Retailer 7
-
$2,223 USD
£1,750 GBP
View
B
Retailer 8
-
$2,453 USD
View
B
Retailer 9
-
$2,893 USD
View
B
Retailer 10
-
$2,909 USD
View
Most Expensive
B
MOH London
LG440013405 · Oct 29
$5,014 USD
£3,948 GBP
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $4,154 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
1.55ct Oval
$860 USD