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Round|Lab Grown|IGI

0.51ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG746546698

Shape and cutting style on the report: Round brilliant

Certificate IGI LG746546698

Diamond specifications and retailer prices

From $132 AUD
$93 USD
As of October 29, 2026
Save $1,078 AUD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,210 AUD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG746546698 or 746546698. Listed at 16 retailers as of October 28, 2026, with prices from $132 to $1,210, a $1,078 spread on the same certified stone. Reve Diamonds lists it at $1,210. 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

0.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG746546698
Dimensions5.13 × 5.16 × 3.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
5.13 mm5.16 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG746546698
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

Caratlytics Score

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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: $305 AUD|Low: $125 AUD|High: $1,210 AUD|Avg: $390 AUD|+9.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
October 29, 2026
Retailer 3$132 AUD
Retailer 14$148 AUD
Retailer 5$152 AUD
Retailer 11$173 AUD
Retailer 12$173 AUD
Retailer 9$235 AUD
Retailer 1$305 AUD
Retailer 6$340 AUD
Retailer 8$340 AUD
Retailer 13$378 AUD
Retailer 10$493 AUD
Retailer 4$525 AUD
Retailer 2$609 AUD
Retailer 7$1,206 AUD
Reve Diamonds$1,210 AUD

44 data points across 15 retailers

16 retailers$132 AUD to $1,210 AUD

A
Cheapest Retailer
-
$132 AUD
$93 USD
A
Retailer 2
-
$148 AUD
$104 USD
View
Final sale: no returns
A
Retailer 3
-
$152 AUD
$107 USD
View
A
Retailer 4
-
$173 AUD
$122 USD
View
A
Retailer 5
-
$173 AUD
$122 USD
View
A
Retailer 6
-
$235 AUD
$165 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$305 AUD
£169 GBP
View
B+
Retailer 8
-
$340 AUD
$239 USD
View
B+
Retailer 9
-
$340 AUD
€228 EUR
View
B+
Retailer 10
-
$378 AUD
$266 USD
View
B+
Retailer 11
-
$493 AUD
$347 USD
View
B+
Retailer 12
-
$523 AUD
$368 USD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
$525 AUD
$369 USD
View
B
Retailer 14
-
$609 AUD
$428 USD
View
B
Retailer 15
-
$1,206 AUD
£668 GBP
View
Most Expensive
B
Reve Diamonds
698EC12D3 · Oct 28
$1,210 AUD
$851 USD
View
15 more retailers have this diamond
Prices start from $132 AUDSave up to $1,078 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
0.51ct Round
$132 AUD