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Round|Lab Grown|IGI

1.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG838619572

Shape and cutting style on the report: Round brilliant

Certificate IGI LG838619572

Diamond specifications and retailer prices

From $474 AUD
$333 USD
As of November 1, 2026
Save $3,754 AUD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,228 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG838619572 or 838619572. Listed at 20 retailers as of October 31, 2026, with prices from $474 to $4,228, a $3,754 spread on the same certified stone. Brilliant Earth lists it at $4,228. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838619572
Dimensions7.28 × 7.31 × 4.54 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
7.28 mm7.31 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838619572
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.2%

Caratlytics Score

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A+
Exceptional
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 1
Current: $4,228 AUD|Low: $474 AUD|High: $5,481 AUD|Avg: $1,270 AUD|-16.6%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 20$474 AUD
Retailer 5$530 AUD
Retailer 19$551 AUD
Retailer 15$588 AUD
Retailer 9$596 AUD
Retailer 12$656 AUD
Retailer 2$753 AUD
Retailer 7$790 AUD
Retailer 16$790 AUD
Retailer 14$952 AUD
Retailer 3$954 AUD
Retailer 6$1,011 AUD
Retailer 13$1,052 AUD
Retailer 4$1,372 AUD
Retailer 18$1,727 AUD
Retailer 8$1,879 AUD
Retailer 17$1,892 AUD
Retailer 11$2,084 AUD
Retailer 10$2,394 AUD
Brilliant Earth$4,228 AUD

21 data points across 20 retailers

20 retailers$474 AUD to $4,228 AUD

A+
Cheapest Retailer
-
$474 AUD
$333 USD
A
Retailer 2
-
$530 AUD
$372 USD
View
Final sale: no returns
A
Retailer 3
-
$551 AUD
$387 USD
View
A
Retailer 4
-
$588 AUD
$413 USD
View
Retailer 5
-
$596 AUD
$419 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$656 AUD
HK$3,600 HKD
View
A
Retailer 7
-
$753 AUD
£417 GBP
View
A
Retailer 8
-
$790 AUD
$555 USD
View
A
Retailer 9
-
$790 AUD
$555 USD
View
A
Retailer 10
-
$952 AUD
€637 EUR
View
A
Retailer 11
-
$954 AUD
$670 USD
View
A
Retailer 12
-
$1,011 AUD
ZAR 11,478 ZAR
View
A
Retailer 13
-
$1,052 AUD
£582 GBP
View
A
Retailer 14
-
$1,372 AUD
View
B+
Retailer 15
-
$1,727 AUD
$1,213 USD
View
B+
Retailer 16
-
$1,879 AUD
SGD 1,784 SGD
View
B+
Retailer 17
-
$1,892 AUD
$1,329 USD
View
B+
Retailer 18
-
$2,084 AUD
$1,464 USD
View
B+
Retailer 19
-
$2,394 AUD
£1,324 GBP
View
Most Expensive
B
Brilliant Earth
21621094A · Oct 31
$4,228 AUD
$2,970 USD
View
19 more retailers have this diamond
Prices start from $474 AUDSave up to $3,754 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+
1.51ct Round
$474 AUD