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Oval|Lab Grown|IGI

1.55ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG447000641

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447000641

Diamond specifications and retailer prices

From $850 USD
As of October 31, 2026
Save $4,164 USD (83%) vs most expensive(unlock to see where)
12 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 LG447000641 or 447000641. Listed at 12 retailers as of October 29, 2026, with prices from $850 to $5,014, a $4,164 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
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000641
Dimensions9.09 × 6.59 × 4.12 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.09 mm6.59 mm1.55 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG447000641
Side View
Table 57.5%Crown 34.4°Girdle: MED-THKPavilion 41.9°Culet: NoneDepth 62.5%

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: $850 USD|High: $5,053 USD|Avg: $2,278 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
Retailer 13
Retailer 14
October 30, 2026
Retailer 8$850 USD
Retailer 7$1,338 USD
Retailer 12$1,456 USD
Retailer 13$1,498 USD
Retailer 9$1,552 USD
Retailer 14$1,552 USD
Retailer 3$1,725 USD
Retailer 5$2,133 USD
Retailer 2$2,223 USD
Retailer 10$2,453 USD
Retailer 4$2,893 USD
Retailer 11$2,909 USD
Retailer 6$4,444 USD
MOH London$5,014 USD

37 data points across 14 retailers

12 retailers$850 USD to $5,014 USD

A
Cheapest Retailer
-
$850 USD
B+
Retailer 2
-
$1,338 USD
View
B+
Retailer 3
-
$1,456 USD
View
B+
Retailer 4
-
$1,498 USD
View
Final sale: no returns
Retailer 5
-
$1,552 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,552 USD
View
B+
Retailer 7
-
$1,725 USD
View
B
Retailer 8
-
$2,223 USD
£1,750 GBP
View
B
Retailer 9
-
$2,453 USD
View
B
Retailer 10
-
$2,893 USD
View
B
Retailer 11
-
$2,909 USD
View
Most Expensive
B
MOH London
LG447000641 · Oct 29
$5,014 USD
£3,948 GBP
View
11 more retailers have this diamond
Prices start from $850 USDSave up to $4,164 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
$850 USD