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Marquise|Lab Grown|IGI

1.88ct I VS1 Marquise Lab Grown Diamond

ID • I/VS1 • IGI LG825601434

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825601434

Diamond specifications and retailer prices

From $323 AUD
$227 USD
As of October 30, 2026
Save $1,038 AUD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,361 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG825601434 or 825601434. Listed at 13 retailers as of October 30, 2026, with prices from $323 to $1,361, a $1,038 spread on the same certified stone. Taylor and Hart lists it at $1,361. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.88
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825601434
Dimensions12.80 × 6.61 × 3.86 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.80 mm6.61 mm1.88 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825601434
Side View
Table 57.0%Crown 32.8°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 58.4%

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: $525 AUD|Low: $315 AUD|High: $1,361 AUD|Avg: $740 AUD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 30, 2026
Retailer 11$323 AUD
Retailer 12$360 AUD
Retailer 8$374 AUD
Retailer 6$400 AUD
Retailer 7$400 AUD
Retailer 1$525 AUD
Retailer 2$679 AUD
Retailer 5$687 AUD
Retailer 10$888 AUD
Retailer 9$925 AUD
Retailer 4$1,287 AUD
Retailer 3$1,291 AUD
Taylor and Hart$1,361 AUD

10 data points across 13 retailers

13 retailers$323 AUD to $1,361 AUD

A
Cheapest Retailer
-
$323 AUD
$227 USD
A
Retailer 2
-
$360 AUD
$253 USD
View
Final sale: no returns
A
Retailer 3
-
$374 AUD
$263 USD
View
Retailer 4
-
$400 AUD
$281 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$400 AUD
$281 USD
View
A
Retailer 6
-
$525 AUD
£290 GBP
View
B+
Retailer 7
-
$679 AUD
$477 USD
View
A
Retailer 8
-
$687 AUD
ZAR 7,801 ZAR
View
A
Retailer 9
-
$888 AUD
$624 USD
View
A
Retailer 10
-
$925 AUD
$650 USD
View
B+
Retailer 11
-
$1,287 AUD
$904 USD
View
B+
Retailer 12
-
$1,291 AUD
$907 USD
View
Most Expensive
B+
Taylor and Hart
CJOH2G6 · Oct 31
$1,361 AUD
$956 USD
View
12 more retailers have this diamond
Prices start from $323 AUDSave up to $1,038 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
$323 AUD