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Marquise|Lab Grown|IGI

1.88ct E SI1 Marquise Lab Grown Diamond

VG • E/SI1 • IGI LG752572737

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG752572737

Diamond specifications and retailer prices

From $340 AUD
$238 USD
As of November 2, 2026
Save $1,465 AUD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,805 AUD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.88ct lab-grown marquise diamond

This 1.88ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG752572737 or 752572737. Listed at 13 retailers as of November 1, 2026, with prices from $340 to $1,805, a $1,465 spread on the same certified stone. Rare Carat lists it at $1,805. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.88
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752572737
Dimensions12.59 × 6.34 × 4.13 mm
L/W Ratio1.99
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.59 mm6.34 mm1.88 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752572737
Side View
Table 53.0%Crown 35.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 65.1%

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: Nov 2
Current: $1,805 AUD|Low: $340 AUD|High: $3,781 AUD|Avg: $1,155 AUD
Rare Carat
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
Retailer 15
Retailer 16
November 3, 2026
Retailer 12$340 AUD
Retailer 5$395 AUD
Retailer 13$422 AUD
Retailer 3$475 AUD
Retailer 10$540 AUD
Retailer 4$712 AUD
Retailer 2$798 AUD
Retailer 14$800 AUD
Retailer 6$909 AUD
Retailer 16$959 AUD
Retailer 15$1,356 AUD
Retailer 11$1,361 AUD
Retailer 9$1,691 AUD
Rare Carat$1,805 AUD
Retailer 7$2,050 AUD
Retailer 8$3,781 AUD

7 data points across 16 retailers

13 retailers$340 AUD to $1,805 AUD

A
Cheapest Retailer
-
$340 AUD
$238 USD
A
Retailer 2
-
$395 AUD
$277 USD
View
A
Retailer 3
-
$422 AUD
$296 USD
View
A
Retailer 4
-
$475 AUD
HK$2,600 HKD
View
A
Retailer 5
-
$540 AUD
£298 GBP
View
B+
Retailer 6
-
$712 AUD
$499 USD
View
A
Retailer 7
-
$798 AUD
£441 GBP
View
B+
Retailer 8
-
$800 AUD
$561 USD
View
B+
Retailer 9
-
$959 AUD
$672 USD
View
B
Retailer 10
-
$1,356 AUD
$950 USD
View
B
Retailer 11
-
$1,361 AUD
$954 USD
View
B
Retailer 12
-
$1,691 AUD
£933 GBP
View
Most Expensive
B
Rare Carat
KI7375727KF752 · Nov 1
$1,805 AUD
$1,265 USD
View
12 more retailers have this diamond
Prices start from $340 AUDSave up to $1,465 AUD

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
1.88ct Marquise
$340 AUD