Marquise|Lab Grown|IGI

3.17ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG766601599

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766601599

Diamond specifications and retailer prices

From HK$31,446 HKD
$4,008 USD
As of October 31, 2026
Save HK$38,852 HKD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$104,872 HKD at Taylor and Hart · As of October 14, 2026
View at Taylor and Hart

About this 3.17ct lab-grown marquise diamond

This 3.17ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG766601599 or 766601599. Listed at 19 retailers as of October 31, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.17
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766601599
Dimensions15.11 × 7.64 × 4.89 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.11 mm7.64 mm3.17 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766601599
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 41.3°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$70,297 HKD|Low: HK$21,432 HKD|High: HK$104,872 HKD|Avg: HK$55,431 HKD|-28.8%
Retailer 1
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
Taylor and Hart
October 30, 2026
Retailer 9HK$21,432 HKD
Retailer 6HK$28,896 HKD
Retailer 17HK$29,100 HKD
Retailer 5HK$30,127 HKD
Retailer 15HK$31,147 HKD
Retailer 11HK$31,446 HKD
Retailer 10HK$39,106 HKD
Retailer 12HK$40,759 HKD
Retailer 4HK$45,675 HKD
Retailer 2HK$46,478 HKD
Retailer 7HK$59,706 HKD
Retailer 13HK$68,854 HKD
Retailer 1HK$70,297 HKD
Retailer 8HK$74,231 HKD
Retailer 16HK$74,879 HKD
Retailer 14HK$76,693 HKD
Retailer 3HK$87,108 HKD
Taylor and HartHK$104,872 HKD

32 data points across 18 retailers

19 retailersHK$31,446 HKD to HK$70,297 HKD

Retailer 1
-
HK$25,812 HKD
$3,290 USD
Price last confirmed 25 days ago
Retailer 2
-
HK$28,080 HKD
$3,579 USD
View
Price last confirmed 18 days ago
Retailer 3
-
HK$29,939 HKD
$3,816 USD
View
Price last confirmed 20 days ago
Retailer 4
-
HK$29,939 HKD
$3,816 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
HK$31,446 HKD
$4,008 USD
View
Retailer 6
-
HK$32,065 HKD
$4,087 USD
View
Price last confirmed 38 days ago
Retailer 7
-
HK$37,408 HKD
$4,768 USD
View
Price last confirmed 25 days ago
A
Retailer 8
-
HK$39,106 HKD
€4,747 EUR
View
Retailer 9
-
HK$40,759 HKD
£4,091 GBP
View
Price last confirmed 17 days ago
Retailer 10
-
HK$45,675 HKD
£4,584 GBP
View
Price last confirmed 18 days ago
Retailer 11
-
HK$46,478 HKD
$5,924 USD
View
Price last confirmed 18 days ago
Retailer 12
-
HK$59,706 HKD
$7,610 USD
View
Price last confirmed 26 days ago
Retailer 13
-
HK$68,854 HKD
ZAR 141,778 ZAR
View
Price last confirmed 18 days ago
B+
Retailer 14
-
HK$70,297 HKD
$8,960 USD
View
Retailer 15
-
HK$74,231 HKD
A$14,556 AUD
View
Price last confirmed 34 days ago
Retailer 16
-
HK$74,879 HKD
$9,544 USD
View
Price last confirmed 18 days ago
Retailer 17
-
HK$76,693 HKD
£7,697 GBP
View
Price last confirmed 18 days ago
Retailer 18
-
HK$87,108 HKD
$11,103 USD
View
Price last confirmed 19 days ago
Most Expensive
Taylor and Hart
I4A2MOO · Oct 14
HK$104,872 HKD
$13,367 USD
View
Price last confirmed 19 days ago
18 more retailers have this diamond
Prices start from HK$31,446 HKDSave up to HK$38,852 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
3.17ct Marquise
HK$31,446 HKD