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Round|Lab Grown|IGI

1.55ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG442067967

Shape and cutting style on the report: Round brilliant

Certificate IGI LG442067967

Diamond specifications and retailer prices

From $860 USD
As of October 31, 2026
Save $3,834 USD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,694 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round 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 LG442067967 or 442067967. Listed at 11 retailers as of October 29, 2026, with prices from $860 to $4,694, a $3,834 spread on the same certified stone. MOH London lists it at $4,694. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG442067967
Dimensions7.52 × 7.49 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
7.52 mm7.49 mm1.55 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG442067967
Side View
Table 57.5%Crown 31.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.9%

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: $4,694 USD|Low: $860 USD|High: $4,724 USD|Avg: $2,374 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 5$1,409 USD
Retailer 8$1,578 USD
Retailer 6$1,635 USD
Retailer 9$1,635 USD
Retailer 10$1,805 USD
Retailer 4$1,870 USD
Retailer 12$2,231 USD
Retailer 7$2,579 USD
Retailer 11$2,967 USD
Retailer 3$4,572 USD
MOH London$4,694 USD

14 data points across 12 retailers

11 retailers$860 USD to $4,694 USD

A
Cheapest Retailer
-
$860 USD
B+
Retailer 2
-
$1,409 USD
View
B+
Retailer 3
-
$1,533 USD
View
B+
Retailer 4
-
$1,578 USD
View
Final sale: no returns
Retailer 5
-
$1,635 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,635 USD
View
B+
Retailer 7
-
$1,805 USD
View
B
Retailer 8
-
$2,579 USD
View
B
Retailer 9
-
$2,967 USD
View
B
Retailer 10
-
$3,064 USD
View
Most Expensive
B
MOH London
LG442067967 · Oct 29
$4,694 USD
£3,696 GBP
View
10 more retailers have this diamond
Prices start from $860 USDSave up to $3,834 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 Round
$860 USD