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Round|Lab Grown|IGI

1.51ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG778655790

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778655790

Diamond specifications and retailer prices

From $357 AUD
$251 USD
As of October 29, 2026
Save $1,949 AUD (85%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $2,306 AUD at Brilliant Earth · As of October 28, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG778655790 or 778655790. Listed at 27 retailers as of October 28, 2026, with prices from $357 to $2,306, a $1,949 spread on the same certified stone. Brilliant Earth lists it at $2,306. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778655790
Dimensions7.36 × 7.29 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.36 mm7.29 mm1.51 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778655790
Side View
Table 62.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.0%

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: Oct 29
Current: $2,306 AUD|Low: $357 AUD|High: $2,505 AUD|Avg: $1,056 AUD|-8.0%
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
October 30, 2026
Retailer 9$357 AUD
Retailer 8$399 AUD
Retailer 10$443 AUD
Retailer 18$510 AUD
Retailer 15$598 AUD
Retailer 2$718 AUD
Retailer 12$726 AUD
Retailer 14$762 AUD
Retailer 11$842 AUD
Retailer 4$925 AUD
Retailer 16$1,033 AUD
Retailer 7$1,341 AUD
Retailer 13$1,362 AUD
Retailer 6$1,425 AUD
Retailer 5$1,457 AUD
Retailer 3$1,745 AUD
Retailer 17$1,786 AUD
Brilliant Earth$2,306 AUD

43 data points across 18 retailers

27 retailers$357 AUD to $2,306 AUD

A
Cheapest Retailer
-
$357 AUD
$251 USD
Retailer 2
-
$357 AUD
$251 USD
View
Price last confirmed 38 days ago
A
Retailer 3
-
$399 AUD
$280 USD
View
Final sale: no returns
Retailer 4
-
$437 AUD
$307 USD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$443 AUD
$311 USD
View
A
Retailer 6
-
$443 AUD
$311 USD
View
A
Retailer 7
-
$510 AUD
HK$2,800 HKD
View
B+
Retailer 8
-
$598 AUD
$420 USD
View
A
Retailer 9
-
$598 AUD
$420 USD
View
A
Retailer 10
-
$678 AUD
$476 USD
View
A
Retailer 11
-
$718 AUD
£397 GBP
View
A
Retailer 12
-
$726 AUD
€486 EUR
View
A
Retailer 13
-
$762 AUD
ZAR 8,645 ZAR
View
B+
Retailer 14
-
$842 AUD
£466 GBP
View
B+
Retailer 15
-
$925 AUD
$650 USD
View
B+
Retailer 16
-
$1,033 AUD
View
B+
Retailer 17
-
$1,117 AUD
$785 USD
View
B
Retailer 18
-
$1,362 AUD
$957 USD
View
B
Retailer 19
-
$1,368 AUD
$961 USD
View
Retailer 20
-
$1,425 AUD
$1,001 USD
View
Price last confirmed 39 days ago
B
Retailer 21
-
$1,425 AUD
$1,001 USD
View
B
Retailer 22
-
$1,457 AUD
SGD 1,383 SGD
View
B
Retailer 23
-
$1,499 AUD
$1,053 USD
View
B
Retailer 24
-
$1,745 AUD
$1,226 USD
View
B
Retailer 25
-
$1,786 AUD
£988 GBP
View
B
Retailer 26
-
$1,931 AUD
$1,357 USD
View
Most Expensive
B
Brilliant Earth
20972774A · Oct 28
$2,306 AUD
$1,620 USD
View
26 more retailers have this diamond
Prices start from $357 AUDSave up to $1,949 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
$357 AUD