Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG597371452

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG597371452

Diamond specifications and retailer prices

From $934 USD
HK$7,300 HKD
As of October 30, 2026
Save $1,546 USD (62%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $4,850 USD at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG597371452 or 597371452. Listed at 29 retailers as of October 30, 2026, with a 165% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597371452
Dimensions11.78 × 6.02 × 3.81 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.78 mm6.02 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597371452
Side View
Table 59.0%Crown 35.4°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $4,850 USD|Low: $547 USD|High: $4,850 USD|Avg: $1,741 USD
Do Amore Diamonds
Retailer 2
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Retailer 24
October 30, 2026
Retailer 11$547 USD
Retailer 10$678 USD
Retailer 3$685 USD
Retailer 19$790 USD
Retailer 9$887 USD
Retailer 5$896 USD
Retailer 13$934 USD
Retailer 17$1,058 USD
Retailer 23$1,142 USD
Retailer 18$1,158 USD
Retailer 21$1,274 USD
Retailer 4$1,749 USD
Retailer 20$1,753 USD
Retailer 12$1,773 USD
Retailer 16$2,179 USD
Retailer 8$2,182 USD
Retailer 24$2,250 USD
Retailer 6$2,284 USD
Retailer 2$2,480 USD
Retailer 14$2,503 USD
Retailer 7$2,536 USD
Retailer 15$2,693 USD
Retailer 22$3,266 USD
Do Amore Diamonds$4,850 USD

38 data points across 24 retailers

29 retailers$934 USD to $2,480 USD

Retailer 1
-
$547 USD
Price last confirmed 23 days ago
Retailer 2
-
$567 USD
View
Price last confirmed 31 days ago
Retailer 3
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$635 USD
View
Price last confirmed 32 days ago
Retailer 4
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$678 USD
View
Price last confirmed 22 days ago
Retailer 5
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$678 USD
View
Price last confirmed 20 days ago
Retailer 6
-
$694 USD
View
Price last confirmed 32 days ago
Retailer 7
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$790 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$887 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$896 USD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$934 USD
HK$7,300 HKD
View
Retailer 11
-
$1,058 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$1,158 USD
£912 GBP
View
Price last confirmed 9 days ago
Retailer 13
-
$1,274 USD
ZAR 20,586 ZAR
View
Price last confirmed 12 days ago
Retailer 14
-
$1,749 USD
View
Price last confirmed 9 days ago
Retailer 15
-
$1,753 USD
A$2,697 AUD
View
Price last confirmed 10 days ago
Retailer 16
-
$1,773 USD
View
Price last confirmed 9 days ago
Retailer 17
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$1,968 USD
View
Price last confirmed 20 days ago
Retailer 18
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$1,968 USD
View
Price last confirmed 9 days ago
Retailer 19
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$2,040 USD
View
Price last confirmed 30 days ago
Retailer 20
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$2,179 USD
£1,716 GBP
View
Price last confirmed 23 days ago
Retailer 21
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$2,182 USD
View
Price last confirmed 8 days ago
Retailer 22
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$2,250 USD
View
Price last confirmed 13 days ago
Retailer 23
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$2,284 USD
View
Price last confirmed 10 days ago
B+
Retailer 24
-
$2,480 USD
View
Retailer 25
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$2,503 USD
A$3,850 AUD
View
Price last confirmed 23 days ago
Retailer 26
-
$2,536 USD
View
Price last confirmed 9 days ago
Retailer 27
-
$2,693 USD
SGD 3,639 SGD
View
Price last confirmed 10 days ago
Retailer 28
-
$3,266 USD
£2,572 GBP
View
Price last confirmed 10 days ago
Most Expensive
Do Amore Diamonds
27-5BC4DB09B · Oct 23
$4,850 USD
View
Price last confirmed 8 days ago
28 more retailers have this diamond
Prices start from $934 USDSave up to $1,546 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 Marquise
$934 USD