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Round|Lab Grown|IGI

1.00ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG819616351

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819616351

Diamond specifications and retailer prices

From $211 AUD
$148 USD
As of October 29, 2026
Save $1,747 AUD (89%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,958 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG819616351 or 819616351. Listed at 9 retailers as of October 29, 2026, with prices from $211 to $1,958, a $1,747 spread on the same certified stone. MOH London lists it at $1,958. 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

1.00
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819616351
Dimensions6.42 × 6.45 × 3.95 mm
L/W Ratio1.00
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
6.42 mm6.45 mm1.00 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819616351
Side View
Table 55.0%Crown 34.8°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 61.4%

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: Oct 29
Current: $1,958 AUD|Low: $182 AUD|High: $1,958 AUD|Avg: $544 AUD|+66.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$211 AUD
Retailer 2$392 AUD
Retailer 3$414 AUD
Retailer 6$443 AUD
Retailer 4$468 AUD
Retailer 9$598 AUD
Retailer 7$601 AUD
Retailer 8$683 AUD
MOH London$1,958 AUD

32 data points across 9 retailers

9 retailers$211 AUD to $1,958 AUD

A
Cheapest Retailer
-
$211 AUD
$148 USD
Final sale: no returns
A
Retailer 2
-
$392 AUD
£217 GBP
View
A
Retailer 3
-
$414 AUD
€277 EUR
View
A
Retailer 4
-
$443 AUD
$311 USD
View
A
Retailer 5
-
$468 AUD
$329 USD
View
Retailer 6
-
$598 AUD
$420 USD
View
Price last confirmed 31 days ago
B+
Retailer 7
-
$601 AUD
$422 USD
View
B+
Retailer 8
-
$683 AUD
$480 USD
View
Most Expensive
C
MOH London
LG819616351 · Oct 29
$1,958 AUD
£1,083 GBP
View
8 more retailers have this diamond
Prices start from $211 AUDSave up to $1,747 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
1.00ct Round
$211 AUD