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Oval|Lab Grown|IGI

1.00ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG496120136

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG496120136

Diamond specifications and retailer prices

From $1,028 AUD
$722 USD
As of October 29, 2026
Save $907 AUD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,354 AUD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496120136 or 496120136. Listed at 12 retailers as of October 29, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496120136
Dimensions7.89 × 5.71 × 3.51 mm
L/W Ratio1.38
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
7.89 mm5.71 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG496120136
Side View
Table 59.5%Crown 35.4°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 61.5%

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: $1,909 AUD|Low: $820 AUD|High: $4,746 AUD|Avg: $2,005 AUD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$1,028 AUD
Retailer 8$1,150 AUD
Retailer 6$1,367 AUD
Retailer 3$1,445 AUD
Retailer 1$1,909 AUD
Retailer 7$1,935 AUD
Retailer 4$2,938 AUD
Retailer 2$4,710 AUD

39 data points across 8 retailers

12 retailers$1,028 AUD to $1,935 AUD

B+
Cheapest Retailer
-
$1,028 AUD
$722 USD
B
Retailer 2
-
$1,119 AUD
$786 USD
View
B
Retailer 3
-
$1,150 AUD
$808 USD
View
Final sale: no returns
Retailer 4
-
$1,193 AUD
$838 USD
View
Price last confirmed 18 days ago
B
Retailer 5
-
$1,193 AUD
$838 USD
View
B
Retailer 6
-
$1,367 AUD
$960 USD
View
B
Retailer 7
-
$1,445 AUD
$1,015 USD
View
B
Retailer 8
-
$1,909 AUD
£1,056 GBP
View
B
Retailer 9
-
$1,935 AUD
$1,359 USD
View
Retailer 10
-
$2,938 AUD
$2,064 USD
View
Price under review
Most Expensive
NZ Jewellers
de6f7770-cdbd-438e-afad-d51ba1b96945 · Oct 28
$3,354 AUD
$2,356 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,028 AUDSave up to $907 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+
1.00ct Oval
$1,028 AUD