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Marquise|Lab Grown|IGI

1.09ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG817695830

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817695830

Diamond specifications and retailer prices

From HK$1,318 HKD
As of November 6, 2026
Save HK$7,312 HKD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$8,630 HKD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817695830 or 817695830. Listed at 19 retailers as of November 6, 2026, with prices from HK$1,318 to HK$8,630, a HK$7,312 spread on the same certified stone. Brilliant Earth lists it at HK$8,630. 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

1.09
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817695830
Dimensions10.94 × 5.27 × 3.28 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.94 mm5.27 mm1.09 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817695830
Side View
Table 62.0%Crown 37°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.2%

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 6
Current: HK$8,630 HKD|Low: HK$1,279 HKD|High: HK$8,630 HKD|Avg: HK$3,599 HKD|+0.9%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 5HK$1,318 HKD
Retailer 16HK$1,530 HKD
Retailer 17HK$1,632 HKD
Retailer 11HK$1,655 HKD
Retailer 12HK$1,938 HKD
Retailer 2HK$2,762 HKD
Retailer 13HK$2,871 HKD
Retailer 4HK$2,895 HKD
Retailer 6HK$2,926 HKD
Retailer 9HK$3,005 HKD
Retailer 3HK$3,758 HKD
Retailer 15HK$4,189 HKD
Retailer 10HK$4,511 HKD
Retailer 18HK$5,248 HKD
Retailer 8HK$5,680 HKD
Retailer 14HK$7,618 HKD
Retailer 7HK$8,559 HKD
Brilliant EarthHK$8,630 HKD

32 data points across 18 retailers

19 retailersHK$1,318 HKD to HK$8,630 HKD

A
Cheapest Retailer
-
HK$1,318 HKD
A
Retailer 2
-
HK$1,530 HKD
View
Retailer 3
-
HK$1,585 HKD
View
Price last confirmed 12 days ago
A
Retailer 4
-
HK$1,632 HKD
View
A
Retailer 5
-
HK$1,655 HKD
View
Final sale: no returns
A
Retailer 6
-
HK$1,938 HKD
View
A
Retailer 7
-
HK$2,762 HKD
View
B+
Retailer 8
-
HK$2,871 HKD
View
B+
Retailer 9
-
HK$2,895 HKD
View
B+
Retailer 10
-
HK$2,926 HKD
View
Retailer 11
-
HK$3,005 HKD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
HK$3,758 HKD
View
B+
Retailer 13
-
HK$4,189 HKD
View
Retailer 14
-
HK$4,511 HKD
View
Price last confirmed 9 days ago
B
Retailer 15
-
HK$5,248 HKD
View
B
Retailer 16
-
HK$5,680 HKD
View
B
Retailer 17
-
HK$7,618 HKD
View
B
Retailer 18
-
HK$8,559 HKD
View
Most Expensive
B
Brilliant Earth
20750167A · Nov 6
HK$8,630 HKD
$1,100 USD
View
18 more retailers have this diamond
Prices start from HK$1,318 HKDSave up to HK$7,312 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
1.09ct Marquise
HK$1,318 HKD