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Marquise|Lab Grown|IGI

3.12ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG839684893

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG839684893

Diamond specifications and retailer prices

From HK$20,830 HKD
$2,655 USD
As of November 1, 2026
Save HK$90,108 HKD (81%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$110,938 HKD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 3.12ct lab-grown marquise diamond

This 3.12ct 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 LG839684893 or 839684893. Listed at 8 retailers as of November 1, 2026, with prices from HK$20,830 to HK$110,938, a HK$90,108 spread on the same certified stone. Do Amore Diamonds lists it at HK$110,938. 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

3.12
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839684893
Dimensions13.89 × 7.19 × 4.68 mm
L/W Ratio1.93
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
13.89 mm7.19 mm3.12 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839684893
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 65.1%

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$110,938 HKD|Low: HK$20,830 HKD|High: HK$110,938 HKD|Avg: HK$51,058 HKD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6HK$20,830 HKD
Retailer 4HK$21,968 HKD
Retailer 8HK$32,638 HKD
Retailer 7HK$60,531 HKD
Retailer 3HK$61,149 HKD
Retailer 2HK$68,991 HKD
Retailer 5HK$79,693 HKD
Do Amore DiamondsHK$110,938 HKD

10 data points across 8 retailers

8 retailersHK$20,830 HKD to HK$110,938 HKD

A
Cheapest Retailer
-
HK$20,830 HKD
$2,655 USD
Final sale: no returns
A
Retailer 2
-
HK$21,968 HKD
$2,800 USD
View
A
Retailer 3
-
HK$32,638 HKD
$4,160 USD
View
B+
Retailer 4
-
HK$60,531 HKD
$7,715 USD
View
B+
Retailer 5
-
HK$61,149 HKD
£6,137 GBP
View
B+
Retailer 6
-
HK$68,991 HKD
£6,924 GBP
View
B
Retailer 7
-
HK$79,693 HKD
$10,158 USD
View
Most Expensive
B
Do Amore Diamonds
20-E103545 · Nov 2
HK$110,938 HKD
$14,140 USD
View
7 more retailers have this diamond
Prices start from HK$20,830 HKDSave up to HK$90,108 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
3.12ct Marquise
HK$20,830 HKD