Marquise|Lab Grown|IGI

3.73ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG712590621

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG712590621

Diamond specifications and retailer prices

From $750 USD
As of October 30, 2026
Save $5,670 USD (88%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,420 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.73ct lab-grown marquise diamond

This 3.73ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG712590621 or 712590621. Listed at 13 retailers as of October 29, 2026, with prices from $750 to $6,420, a $5,670 spread on the same certified stone. Do Amore Diamonds lists it at $6,420. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.73
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712590621
Dimensions16.73 × 8.06 × 4.88 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.73 mm8.06 mm3.73 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712590621
Side View
Table 61.0%Crown 32.1°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 60.5%

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: Oct 30
Current: $6,420 USD|Low: $720 USD|High: $6,420 USD|Avg: $2,324 USD
Do Amore Diamonds
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 29, 2026
Retailer 11$750 USD
Retailer 3$816 USD
Retailer 9$1,177 USD
Retailer 4$1,196 USD
Retailer 13$1,408 USD
Retailer 6$1,410 USD
Retailer 5$1,491 USD
Retailer 10$2,068 USD
Retailer 7$2,166 USD
Retailer 12$2,699 USD
Retailer 2$3,617 USD
Retailer 8$3,815 USD
Do Amore Diamonds$6,420 USD

22 data points across 13 retailers

13 retailers$750 USD to $6,420 USD

A
Cheapest Retailer
-
$750 USD
A
Retailer 2
-
$816 USD
View
Retailer 3
-
$1,177 USD
£927 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
$1,196 USD
View
A
Retailer 5
-
$1,408 USD
View
B+
Retailer 6
-
$1,410 USD
View
A
Retailer 7
-
$1,491 USD
View
B+
Retailer 8
-
$2,068 USD
View
Retailer 9
-
$2,166 USD
A$3,332 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$2,699 USD
View
B
Retailer 11
-
$3,617 USD
£2,848 GBP
View
B
Retailer 12
-
$3,815 USD
View
Most Expensive
B
Do Amore Diamonds
7-1704266 · Oct 29
$6,420 USD
View
12 more retailers have this diamond
Prices start from $750 USDSave up to $5,670 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
3.73ct Marquise
$750 USD