CaratHunter
Plans
Marquise|Lab Grown|IGI

1.88ct E FL Marquise Lab Grown Diamond

VG • E/FL • IGI LG845633123

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845633123

Diamond specifications and retailer prices

From $1,515 AUD
$1,064 USD
As of October 30, 2026
Save $5,195 AUD (77%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,709 AUD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

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 FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG845633123 or 845633123. Listed at 8 retailers as of October 30, 2026, with prices from $1,515 to $6,709, a $5,195 spread on the same certified stone. Helzberg Diamonds lists it at $6,709. 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
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845633123
Dimensions12.72 × 6.60 × 3.92 mm
L/W Ratio1.93
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
12.72 mm6.60 mm1.88 ctE / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845633123
Side View
Table 62.0%Crown 33.5°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 59.4%

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: $6,709 AUD|Low: $1,515 AUD|High: $6,709 AUD|Avg: $4,279 AUD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$1,515 AUD
Retailer 3$1,815 AUD
Retailer 2$2,419 AUD
Retailer 6$4,648 AUD
Retailer 7$4,699 AUD
Retailer 8$5,265 AUD
Retailer 4$5,350 AUD
Helzberg Diamonds$6,709 AUD

4 data points across 8 retailers

8 retailers$1,515 AUD to $6,709 AUD

A
Cheapest Retailer
-
$1,515 AUD
$1,064 USD
Final sale: no returns
A
Retailer 2
-
$1,815 AUD
$1,275 USD
View
A
Retailer 3
-
$2,419 AUD
£1,338 GBP
View
B
Retailer 4
-
$4,648 AUD
$3,265 USD
View
B
Retailer 5
-
$4,699 AUD
$3,301 USD
View
B
Retailer 6
-
$5,265 AUD
SGD 4,998 SGD
View
B
Retailer 7
-
$5,350 AUD
£2,959 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOKLMJJHIJ · Oct 30
$6,709 AUD
$4,713 USD
View
7 more retailers have this diamond
Prices start from $1,515 AUDSave up to $5,195 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
$1,515 AUD