CaratHunter
Plans
Round|Lab Grown|IGI

1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG821683706

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821683706

Diamond specifications and retailer prices

From $439 AUD
As of November 4, 2026
Save $1,156 AUD (72%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,595 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG821683706 or 821683706. Listed at 10 retailers as of November 4, 2026, with prices from $439 to $1,595, a $1,156 spread on the same certified stone. MOH London lists it at $1,595. 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

1.55
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821683706
Dimensions7.48 × 7.53 × 4.53 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.53 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821683706
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.4%

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: Nov 4
Current: $1,595 AUD|Low: $439 AUD|High: $1,615 AUD|Avg: $986 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10$439 AUD
Retailer 9$600 AUD
Retailer 7$679 AUD
Retailer 6$684 AUD
Retailer 2$806 AUD
Retailer 5$1,107 AUD
Retailer 8$1,279 AUD
Retailer 3$1,283 AUD
Retailer 4$1,414 AUD
MOH London$1,595 AUD

14 data points across 10 retailers

10 retailers$439 AUD to $1,595 AUD

Retailer 1
-
$373 AUD
Price last confirmed 31 days ago
A
Retailer 2
-
$439 AUD
View
A
Retailer 3
-
$679 AUD
View
B+
Retailer 4
-
$806 AUD
View
Retailer 5
-
$1,107 AUD
View
Price last confirmed 33 days ago
Retailer 6
-
$1,279 AUD
View
Price last confirmed 37 days ago
B
Retailer 7
-
$1,279 AUD
View
B
Retailer 8
-
$1,283 AUD
View
Retailer 9
-
$1,414 AUD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
LG821683706 · Nov 2
$1,595 AUD
£879 GBP
View
9 more retailers have this diamond
Prices start from $439 AUDSave up to $1,156 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
1.55ct Round
$439 AUD