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Oval|Lab Grown|IGI

1.55ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG436074867

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074867

Diamond specifications and retailer prices

From $820 USD
As of October 29, 2026
Save $3,475 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,295 USD at MOH London · As of October 27, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074867 or 436074867. Listed at 10 retailers as of October 27, 2026, with prices from $820 to $4,295, a $3,475 spread on the same certified stone. MOH London lists it at $4,295. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074867
Dimensions9.53 × 6.41 × 3.92 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.53 mm6.41 mm1.55 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436074867
Side View
Table 59.0%Crown 35.5°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.2%

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 29
Current: $4,295 USD|Low: $820 USD|High: $4,341 USD|Avg: $1,906 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 4$820 USD
Retailer 2$1,151 USD
Retailer 8$1,252 USD
Retailer 9$1,288 USD
Retailer 5$1,335 USD
Retailer 11$1,902 USD
Retailer 6$2,122 USD
Retailer 7$2,502 USD
Retailer 10$2,631 USD
Retailer 3$2,988 USD
MOH London$4,295 USD

12 data points across 11 retailers

10 retailers$820 USD to $4,295 USD

A
Cheapest Retailer
-
$820 USD
B+
Retailer 2
-
$1,151 USD
View
B+
Retailer 3
-
$1,252 USD
View
B+
Retailer 4
-
$1,288 USD
View
Final sale: no returns
Retailer 5
-
$1,335 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,335 USD
View
B
Retailer 7
-
$2,122 USD
View
B
Retailer 8
-
$2,502 USD
View
B
Retailer 9
-
$2,631 USD
View
Most Expensive
B
MOH London
LG436074867 · Oct 27
$4,295 USD
£3,382 GBP
View
9 more retailers have this diamond
Prices start from $820 USDSave up to $3,475 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
$820 USD