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Oval|Lab Grown|IGI

1.00ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG497145121

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG497145121

Diamond specifications and retailer prices

From HK$5,312 HKD
$677 USD
As of October 29, 2026
Save HK$4,724 HKD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$17,325 HKD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG497145121 or 497145121. Listed at 12 retailers as of October 28, 2026, with a 89% 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497145121
Dimensions8.14 × 5.60 × 3.49 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.14 mm5.60 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497145121
Side View
Table 55.0%Crown 34.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.3%

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: HK$9,833 HKD|Low: HK$3,887 HKD|High: HK$26,307 HKD|Avg: HK$8,903 HKD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3HK$3,887 HKD
Retailer 7HK$5,312 HKD
Retailer 11HK$5,940 HKD
Retailer 2HK$6,159 HKD
Retailer 9HK$6,159 HKD
Retailer 8HK$7,140 HKD
Retailer 5HK$7,572 HKD
Retailer 1HK$9,833 HKD
Retailer 10HK$10,036 HKD
Retailer 6HK$15,740 HKD
Retailer 4HK$26,098 HKD

42 data points across 11 retailers

12 retailersHK$5,312 HKD to HK$10,036 HKD

B+
Cheapest Retailer
-
HK$5,312 HKD
$677 USD
B
Retailer 2
-
HK$5,783 HKD
$737 USD
View
B
Retailer 3
-
HK$5,940 HKD
$757 USD
View
Final sale: no returns
B
Retailer 4
-
HK$6,159 HKD
$785 USD
View
Price last confirmed 13 days ago
B
Retailer 5
-
HK$6,159 HKD
$785 USD
View
B
Retailer 6
-
HK$7,140 HKD
$910 USD
View
B
Retailer 7
-
HK$7,572 HKD
$965 USD
View
B
Retailer 8
-
HK$9,833 HKD
£987 GBP
View
B
Retailer 9
-
HK$10,036 HKD
$1,279 USD
View
B
Retailer 10
-
HK$15,740 HKD
$2,006 USD
View
Price under review
Most Expensive
B
NZ Jewellers
a138cbf6-82d7-4729-9991-1ca35600ba41 · Oct 28
HK$17,325 HKD
$2,208 USD
View
Price under review
10 more retailers have this diamond
Prices start from HK$5,312 HKDSave up to HK$4,724 HKD

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
HK$5,312 HKD