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Marquise|Lab Grown|IGI

1.57ct K SI1 Marquise Lab Grown Diamond

EX • K/SI1 • IGI LG436047693

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436047693

Diamond specifications and retailer prices

From $1,386 AUD
As of November 6, 2026
Save $4,052 AUD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,438 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.57ct lab-grown marquise diamond

This 1.57ct lab-grown marquise sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436047693 or 436047693. Listed at 9 retailers as of November 5, 2026, with prices from $1,386 to $5,438, a $4,052 spread on the same certified stone. MOH London lists it at $5,438. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.57
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436047693
Dimensions11.11 × 6.14 × 3.87 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
11.11 mm6.14 mm1.57 ctK / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436047693
Side View
Table 61.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.0%

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 6
Current: $5,438 AUD|Low: $1,330 AUD|High: $5,525 AUD|Avg: $2,853 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4$1,386 AUD
Retailer 5$1,608 AUD
Retailer 8$1,773 AUD
Retailer 2$1,863 AUD
Retailer 7$2,364 AUD
Retailer 6$2,573 AUD
Retailer 3$3,464 AUD
Retailer 9$4,602 AUD
MOH London$5,438 AUD

19 data points across 9 retailers

9 retailers$1,386 AUD to $5,438 AUD

A
Cheapest Retailer
-
$1,386 AUD
A
Retailer 2
-
$1,508 AUD
View
Retailer 3
-
$1,608 AUD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,608 AUD
View
B+
Retailer 5
-
$1,863 AUD
View
B+
Retailer 6
-
$2,573 AUD
View
B
Retailer 7
-
$3,464 AUD
View
B
Retailer 8
-
$4,519 AUD
View
Most Expensive
B
MOH London
LG436047693 · Nov 5
$5,438 AUD
£2,942 GBP
View
8 more retailers have this diamond
Prices start from $1,386 AUDSave up to $4,052 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
1.57ct Marquise
$1,386 AUD