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Oval|Lab Grown|IGI

1.00ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG450028009

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG450028009

Diamond specifications and retailer prices

From HK$4,551 HKD
$580 USD
As of October 31, 2026
Save HK$14,946 HKD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$30,719 HKD at MOH London · As of October 25, 2026
View at MOH London

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG450028009 or 450028009. Listed at 11 retailers as of October 31, 2026, with a 328% 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450028009
Dimensions7.54 × 5.70 × 3.65 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
7.54 mm5.70 mm1.00 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450028009
Side View
Table 55.0%Crown 35.7°Girdle: MED-THKPavilion 41.5°Culet: NoneDepth 64.0%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: HK$30,719 HKD|Low: HK$4,551 HKD|High: HK$31,048 HKD|Avg: HK$15,267 HKD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2HK$4,551 HKD
Retailer 4HK$7,799 HKD
Retailer 6HK$8,732 HKD
Retailer 7HK$10,435 HKD
Retailer 8HK$13,024 HKD
Retailer 5HK$14,452 HKD
Retailer 3HK$19,497 HKD
Retailer 9HK$25,907 HKD
MOH LondonHK$30,719 HKD

11 data points across 9 retailers

11 retailersHK$4,551 HKD to HK$19,497 HKD

A
Cheapest Retailer
-
HK$4,551 HKD
$580 USD
B+
Retailer 2
-
HK$7,799 HKD
$994 USD
View
B+
Retailer 3
-
HK$8,481 HKD
$1,081 USD
View
B+
Retailer 4
-
HK$8,732 HKD
$1,113 USD
View
Final sale: no returns
Retailer 5
-
HK$9,046 HKD
$1,153 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
HK$9,046 HKD
$1,153 USD
View
B
Retailer 7
-
HK$10,435 HKD
$1,330 USD
View
B
Retailer 8
-
HK$14,452 HKD
$1,842 USD
View
B
Retailer 9
-
HK$16,955 HKD
$2,161 USD
View
B
Retailer 10
-
HK$19,497 HKD
$2,485 USD
View
Most Expensive
MOH London
LG450028009 · Oct 25
HK$30,719 HKD
£3,083 GBP
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from HK$4,551 HKDSave up to HK$14,946 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.

A
1.00ct Oval
HK$4,551 HKD