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Oval|Lab Grown|IGI

1.77ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG690502894

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG690502894

Diamond specifications and retailer prices

From $360 AUD
$253 USD
As of October 27, 2026
Save $880 AUD (71%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,240 AUD at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.77ct lab-grown oval diamond

This 1.77ct 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 top-tier cut grade and certified by IGI LG690502894 or 690502894. Listed at 9 retailers as of October 27, 2026, with prices from $360 to $1,240, a $880 spread on the same certified stone. NZ Jewellers lists it at $1,240. 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

1.77
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG690502894
Dimensions9.91 × 6.77 × 4.28 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.91 mm6.77 mm1.77 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG690502894
Side View
Table 56.0%Crown 35.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,240 AUD|Low: $360 AUD|High: $2,719 AUD|Avg: $1,065 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 13$360 AUD
Retailer 7$386 AUD
Retailer 11$437 AUD
Retailer 6$497 AUD
Retailer 12$660 AUD
Retailer 2$716 AUD
Retailer 8$762 AUD
Retailer 3$770 AUD
Retailer 9$854 AUD
NZ Jewellers$1,240 AUD
Retailer 10$1,537 AUD
Retailer 4$1,746 AUD
Retailer 5$2,719 AUD

3 data points across 13 retailers

9 retailers$360 AUD to $1,240 AUD

A
Cheapest Retailer
-
$360 AUD
$253 USD
A
Retailer 2
-
$386 AUD
$271 USD
View
A
Retailer 3
-
$437 AUD
HK$2,400 HKD
View
A
Retailer 4
-
$497 AUD
£275 GBP
View
B+
Retailer 5
-
$660 AUD
$464 USD
View
A
Retailer 6
-
$716 AUD
£396 GBP
View
A
Retailer 7
-
$762 AUD
$535 USD
View
B+
Retailer 8
-
$854 AUD
$600 USD
View
Most Expensive
B
NZ Jewellers
50bc0bdf-1e6f-4035-928e-b11690bafe16 · Oct 28
$1,240 AUD
$871 USD
View
8 more retailers have this diamond
Prices start from $360 AUDSave up to $880 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
1.77ct Oval
$360 AUD