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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 $281 SGD
$219 USD
As of October 29, 2026
Save $836 SGD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,116 SGD 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 10 retailers as of October 28, 2026, with prices from $281 to $1,116, a $836 spread on the same certified stone. NZ Jewellers lists it at $1,116. 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

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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 29
Current: $1,116 SGD|Low: $281 SGD|High: $2,448 SGD|Avg: $909 SGD
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
Retailer 14
October 30, 2026
Retailer 8$281 SGD
Retailer 3$324 SGD
Retailer 9$347 SGD
Retailer 13$394 SGD
Retailer 2$446 SGD
Retailer 14$595 SGD
Retailer 7$645 SGD
Retailer 10$686 SGD
Retailer 4$693 SGD
Retailer 11$769 SGD
NZ Jewellers$1,116 SGD
Retailer 12$1,384 SGD
Retailer 5$1,573 SGD
Retailer 6$2,448 SGD

4 data points across 14 retailers

10 retailers$281 SGD to $1,116 SGD

A
Cheapest Retailer
-
$281 SGD
$219 USD
A
Retailer 2
-
$324 SGD
$253 USD
View
A
Retailer 3
-
$347 SGD
$271 USD
View
A
Retailer 4
-
$394 SGD
HK$2,400 HKD
View
A
Retailer 5
-
$446 SGD
£274 GBP
View
B+
Retailer 6
-
$595 SGD
$464 USD
View
A
Retailer 7
-
$645 SGD
£396 GBP
View
A
Retailer 8
-
$686 SGD
$535 USD
View
B+
Retailer 9
-
$769 SGD
$600 USD
View
Most Expensive
B
NZ Jewellers
50bc0bdf-1e6f-4035-928e-b11690bafe16 · Oct 28
$1,116 SGD
$871 USD
View
9 more retailers have this diamond
Prices start from $281 SGDSave up to $836 SGD

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
$281 SGD