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Oval|Lab Grown

1.50ct E SI1 Oval Lab Grown Diamond

GD • E/SI1 • 778C528685

Diamond specifications and retailer prices

From $413 AUD
$290 USD
As of October 29, 2026
Save $1,230 AUD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,643 AUD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.5ct lab-grown oval diamond

This 1.5ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade. Listed at 4 retailers as of October 28, 2026, with prices from $413 to $1,643, a $1,230 spread on the same certified stone. NZ Jewellers lists it at $1,643. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate778C528685
Dimensions9.24 × 6.61 × 3.82 mm
L/W Ratio1.40
Top View
9.24 mm6.61 mm1.50 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Certificate778C528685
Side View
Table 65.6%CrownGirdlePavilionCulet: NoneDepth 57.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,643 AUD|Low: $396 AUD|High: $1,643 AUD|Avg: $679 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 2$413 AUD
Retailer 4$478 AUD
Retailer 3$511 AUD
NZ Jewellers$1,643 AUD

7 data points across 4 retailers

4 retailers$413 AUD to $1,643 AUD

B+
Cheapest Retailer
-
$413 AUD
$290 USD
B+
Retailer 2
-
$478 AUD
$336 USD
View
B+
Retailer 3
-
$511 AUD
$359 USD
View
Most Expensive
C
NZ Jewellers
b8776fdc-eb3a-4901-abd5-14fe818544c8 · Oct 28
$1,643 AUD
$1,154 USD
View
3 more retailers have this diamond
Prices start from $413 AUDSave up to $1,230 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.

B+
1.50ct Oval
$413 AUD