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Marquise|Lab Grown|IGI

1.00ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG821694324

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG821694324

Diamond specifications and retailer prices

From HK$2,315 HKD
$295 USD
As of November 1, 2026
Save HK$2,681 HKD (54%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$6,666 HKD at MOH London · As of October 18, 2026
View at MOH London

About this 1ct lab-grown marquise diamond

This 1ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG821694324 or 821694324. Listed at 6 retailers as of October 31, 2026, with a 116% 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821694324
Dimensions10.30 × 5.30 × 3.29 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.30 mm5.30 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821694324
Side View
Table 61.0%Crown 35.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

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: Nov 1
Current: HK$6,666 HKD|Low: HK$2,315 HKD|High: HK$6,666 HKD|Avg: HK$3,637 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5HK$2,315 HKD
Retailer 2HK$2,428 HKD
Retailer 4HK$2,628 HKD
Retailer 3HK$2,694 HKD
Retailer 6HK$4,995 HKD
MOH LondonHK$6,666 HKD

27 data points across 6 retailers

6 retailersHK$2,315 HKD to HK$4,995 HKD

A
Cheapest Retailer
-
HK$2,315 HKD
$295 USD
A
Retailer 2
-
HK$2,428 HKD
£244 GBP
View
A
Retailer 3
-
HK$2,628 HKD
$335 USD
View
A
Retailer 4
-
HK$2,694 HKD
£270 GBP
View
B
Retailer 5
-
HK$4,995 HKD
$637 USD
View
Most Expensive
MOH London
LG821694324 · Oct 18
HK$6,666 HKD
£669 GBP
View
Price last confirmed 15 days ago
5 more retailers have this diamond
Prices start from HK$2,315 HKDSave up to HK$2,681 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 Marquise
HK$2,315 HKD