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Oval|Lab Grown|IGI

1.55ct H VS1 Oval Lab Grown Diamond

EX • H/VS1 • IGI LG818664311

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818664311

Diamond specifications and retailer prices

From $230 USD
As of November 1, 2026
Save $916 USD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,146 USD at MOH London · As of November 2, 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818664311 or 818664311. Listed at 16 retailers as of November 1, 2026, with prices from $230 to $1,146, a $916 spread on the same certified stone. MOH London lists it at $1,146. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818664311
Dimensions9.65 × 6.44 × 3.97 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.65 mm6.44 mm1.55 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818664311
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
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: Nov 1
Current: $1,146 USD|Low: $217 USD|High: $1,147 USD|Avg: $634 USD|+3.7%
MOH London
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
Retailer 15
Retailer 16
November 2, 2026
Retailer 7$230 USD
Retailer 4$258 USD
Retailer 8$267 USD
Retailer 13$286 USD
Retailer 14$286 USD
Retailer 12$484 USD
Retailer 10$493 USD
Retailer 16$522 USD
Retailer 2$668 USD
Retailer 9$767 USD
Retailer 15$919 USD
Retailer 5$924 USD
Retailer 6$955 USD
Retailer 3$971 USD
Retailer 11$1,120 USD
MOH London$1,146 USD

38 data points across 16 retailers

16 retailers$230 USD to $1,146 USD

A
Cheapest Retailer
-
$230 USD
A
Retailer 2
-
$258 USD
View
Final sale: no returns
A
Retailer 3
-
$267 USD
View
A
Retailer 4
-
$286 USD
View
Retailer 5
-
$286 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$484 USD
View
A
Retailer 7
-
$493 USD
ZAR 7,970 ZAR
View
A
Retailer 8
-
$522 USD
View
B+
Retailer 9
-
$668 USD
A$1,027 AUD
View
B
Retailer 10
-
$767 USD
View
B+
Retailer 11
-
$919 USD
View
B+
Retailer 12
-
$924 USD
SGD 1,249 SGD
View
Retailer 13
-
$955 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
$971 USD
View
B
Retailer 15
-
$1,120 USD
View
Most Expensive
B
MOH London
LG818664311 · Nov 2
$1,146 USD
£902 GBP
View
15 more retailers have this diamond
Prices start from $230 USDSave up to $916 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
$230 USD