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Marquise|Lab Grown|IGI

1.59ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG800679631

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800679631

Diamond specifications and retailer prices

From $1,203 USD
HK$9,400 HKD
As of October 30, 2026
Save $2,537 USD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,740 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.59ct lab-grown marquise diamond

This 1.59ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800679631 or 800679631. Listed at 12 retailers as of October 30, 2026, with prices from $1,203 to $3,740, a $2,537 spread on the same certified stone. Brilliant Earth lists it at $3,740. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679631
Dimensions12.14 × 6.06 × 3.84 mm
L/W Ratio2.00
Girdle conditionFaceted
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
12.14 mm6.06 mm1.59 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679631
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.4%

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 30
Current: $3,740 USD|Low: $832 USD|High: $4,216 USD|Avg: $2,438 USD|-10.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5$832 USD
Retailer 9$1,203 USD
Retailer 12$1,300 USD
Retailer 13$1,480 USD
Retailer 2$1,507 USD
Retailer 6$1,576 USD
Retailer 7$1,802 USD
Retailer 11$2,519 USD
Retailer 10$3,068 USD
Retailer 4$3,399 USD
Retailer 8$3,680 USD
Retailer 3$3,719 USD
Brilliant Earth$3,740 USD

42 data points across 13 retailers

12 retailers$1,203 USD to $3,740 USD

A
Cheapest Retailer
-
$1,203 USD
HK$9,400 HKD
A
Retailer 2
-
$1,300 USD
View
A
Retailer 3
-
$1,480 USD
View
A
Retailer 4
-
$1,507 USD
£1,186 GBP
View
A
Retailer 5
-
$1,576 USD
€1,501 EUR
View
B+
Retailer 6
-
$1,802 USD
ZAR 29,118 ZAR
View
B+
Retailer 7
-
$2,519 USD
View
B+
Retailer 8
-
$3,068 USD
View
B
Retailer 9
-
$3,399 USD
View
B
Retailer 10
-
$3,680 USD
£2,898 GBP
View
B
Retailer 11
-
$3,719 USD
View
Most Expensive
B
Brilliant Earth
20936672A · Oct 30
$3,740 USD
View
11 more retailers have this diamond
Prices start from $1,203 USDSave up to $2,537 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
1.59ct Marquise
$1,203 USD