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Marquise|Lab Grown|IGI

1.70ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG817693361

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817693361

Diamond specifications and retailer prices

From HK$7,077 HKD
$902 USD
As of October 30, 2026
Save HK$23,521 HKD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$30,598 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.7ct lab-grown marquise diamond

This 1.7ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817693361 or 817693361. Listed at 21 retailers as of October 30, 2026, with prices from HK$7,077 to HK$30,598, a HK$23,521 spread on the same certified stone. Brilliant Earth lists it at HK$30,598. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817693361
Dimensions11.99 × 6.28 × 3.93 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.99 mm6.28 mm1.70 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817693361
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.6%

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 30
Current: HK$30,598 HKD|Low: HK$7,077 HKD|High: HK$40,092 HKD|Avg: HK$19,932 HKD|-23.7%
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
Retailer 19
Retailer 20
October 30, 2026
Retailer 4HK$7,077 HKD
Retailer 19HK$7,697 HKD
Retailer 6HK$7,916 HKD
Retailer 16HK$8,207 HKD
Retailer 5HK$9,540 HKD
Retailer 15HK$9,572 HKD
Retailer 20HK$11,470 HKD
Retailer 2HK$12,635 HKD
Retailer 13HK$13,090 HKD
Retailer 7HK$13,157 HKD
Retailer 14HK$15,087 HKD
Retailer 10HK$18,257 HKD
Retailer 3HK$22,718 HKD
Retailer 17HK$23,074 HKD
Retailer 8HK$24,353 HKD
Retailer 9HK$26,936 HKD
Retailer 11HK$27,560 HKD
Retailer 18HK$27,869 HKD
Retailer 12HK$28,514 HKD
Brilliant EarthHK$30,598 HKD

35 data points across 20 retailers

21 retailersHK$7,077 HKD to HK$30,598 HKD

A
Cheapest Retailer
-
HK$7,077 HKD
$902 USD
A
Retailer 2
-
HK$7,697 HKD
$981 USD
View
A
Retailer 3
-
HK$7,916 HKD
$1,009 USD
View
Final sale: no returns
A
Retailer 4
-
HK$8,207 HKD
$1,046 USD
View
A
Retailer 5
-
HK$9,540 HKD
View
A
Retailer 6
-
HK$9,572 HKD
$1,220 USD
View
Retailer 7
-
HK$10,270 HKD
$1,309 USD
View
Price last confirmed 13 days ago
A
Retailer 8
-
HK$11,470 HKD
$1,462 USD
View
A
Retailer 9
-
HK$12,635 HKD
£1,268 GBP
View
A
Retailer 10
-
HK$13,090 HKD
€1,589 EUR
View
A
Retailer 11
-
HK$13,157 HKD
$1,677 USD
View
B+
Retailer 12
-
HK$15,087 HKD
ZAR 31,066 ZAR
View
B+
Retailer 13
-
HK$18,257 HKD
$2,327 USD
View
B+
Retailer 14
-
HK$22,718 HKD
£2,280 GBP
View
B
Retailer 15
-
HK$23,074 HKD
$2,941 USD
View
B+
Retailer 16
-
HK$24,353 HKD
$3,104 USD
View
B
Retailer 17
-
HK$26,936 HKD
$3,433 USD
View
B
Retailer 18
-
HK$27,560 HKD
SGD 4,747 SGD
View
B
Retailer 19
-
HK$27,869 HKD
£2,797 GBP
View
B
Retailer 20
-
HK$28,514 HKD
$3,634 USD
View
Most Expensive
B
Brilliant Earth
20860257A · Oct 30
HK$30,598 HKD
$3,900 USD
View
20 more retailers have this diamond
Prices start from HK$7,077 HKDSave up to HK$23,521 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
1.70ct Marquise
HK$7,077 HKD