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Oval|Lab Grown|IGI

1.76ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG512225587

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG512225587

Diamond specifications and retailer prices

From $942 AUD
As of October 29, 2026
Save $1,108 AUD (54%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,050 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.76ct lab-grown oval diamond

This 1.76ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512225587 or 512225587. Listed at 4 retailers as of October 29, 2026, with prices from $942 to $2,050, a $1,108 spread on the same certified stone. Brilliant Earth lists it at $2,050. 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

1.76
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512225587
Dimensions10.02 × 6.87 × 4.17 mm
L/W Ratio1.46
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
10.02 mm6.87 mm1.76 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512225587
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $2,050 AUD|Low: $273 AUD|High: $3,303 AUD|Avg: $1,177 AUD
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
October 29, 2026
Retailer 10$273 AUD
Retailer 15$547 AUD
Retailer 5$656 AUD
Retailer 12$725 AUD
Retailer 14$758 AUD
Retailer 11$776 AUD
Retailer 8$864 AUD
Retailer 2$942 AUD
Retailer 9$1,047 AUD
Retailer 7$1,182 AUD
Retailer 3$1,251 AUD
Retailer 13$1,525 AUD
Retailer 6$1,754 AUD
Brilliant Earth$2,050 AUD
Retailer 4$3,303 AUD

4 data points across 15 retailers

4 retailers$942 AUD to $2,050 AUD

Retailer 1
-
$656 AUD
HK$3,600 HKD
Price last confirmed 56 days ago
B+
Retailer 2
-
$942 AUD
View
Retailer 3
-
$1,525 AUD
$1,071 USD
View
Price last confirmed 51 days ago
Most Expensive
B
Brilliant Earth
6784647Y · Oct 29
$2,050 AUD
$1,440 USD
View
3 more retailers have this diamond
Prices start from $942 AUDSave up to $1,108 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+
1.76ct Oval
$942 AUD