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Marquise|Lab Grown|IGI

3.51ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG801635337

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG801635337

Diamond specifications and retailer prices

From HK$3,460 HKD
$441 USD
As of November 2, 2026
Save HK$22,354 HKD (87%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$25,814 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 3.51ct lab-grown marquise diamond

This 3.51ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG801635337 or 801635337. Listed at 25 retailers as of November 2, 2026, with prices from HK$3,460 to HK$25,814, a HK$22,354 spread on the same certified stone. Brilliant Earth lists it at HK$25,814. 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

3.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801635337
Dimensions15.81 × 8.02 × 4.74 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.81 mm8.02 mm3.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801635337
Side View
Table 63.0%Crown 34.6°Girdle: STK-THKPavilion 39.9°Culet: NoneDepth 59.1%

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 2
Current: HK$25,814 HKD|Low: HK$3,460 HKD|High: HK$26,677 HKD|Avg: HK$10,419 HKD|-3.2%
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 2, 2026
Retailer 12HK$3,460 HKD
Retailer 4HK$3,876 HKD
Retailer 8HK$4,967 HKD
Retailer 10HK$4,967 HKD
Retailer 9HK$5,728 HKD
Retailer 14HK$5,767 HKD
Retailer 16HK$6,787 HKD
Retailer 13HK$7,036 HKD
Retailer 7HK$7,876 HKD
Retailer 11HK$9,353 HKD
Retailer 17HK$9,415 HKD
Retailer 5HK$10,480 HKD
Retailer 2HK$10,514 HKD
Retailer 3HK$14,060 HKD
Retailer 15HK$15,406 HKD
Retailer 18HK$16,061 HKD
Retailer 6HK$20,826 HKD
Brilliant EarthHK$25,814 HKD

37 data points across 18 retailers

25 retailersHK$3,460 HKD to HK$25,814 HKD

A
Cheapest Retailer
-
HK$3,460 HKD
$441 USD
A
Retailer 2
-
HK$3,876 HKD
$494 USD
View
Final sale: no returns
Retailer 3
-
HK$4,002 HKD
$510 USD
View
Price last confirmed 25 days ago
Retailer 4
-
HK$4,002 HKD
$510 USD
View
Price last confirmed 17 days ago
Retailer 5
-
HK$4,002 HKD
$510 USD
View
Price last confirmed 12 days ago
Retailer 6
-
HK$4,480 HKD
$571 USD
View
Price last confirmed 9 days ago
Retailer 7
-
HK$4,480 HKD
$571 USD
View
Price last confirmed 34 days ago
Retailer 8
-
HK$4,896 HKD
$624 USD
View
Price last confirmed 38 days ago
Retailer 9
-
HK$4,967 HKD
$633 USD
View
Price last confirmed 30 days ago
Retailer 10
-
HK$4,967 HKD
$633 USD
View
Price last confirmed 17 days ago
A
Retailer 11
-
HK$5,728 HKD
$730 USD
View
B+
Retailer 12
-
HK$5,767 HKD
$735 USD
View
A
Retailer 13
-
HK$6,787 HKD
$865 USD
View
A
Retailer 14
-
HK$7,036 HKD
£706 GBP
View
A
Retailer 15
-
HK$9,353 HKD
ZAR 19,257 ZAR
View
A
Retailer 16
-
HK$9,415 HKD
$1,200 USD
View
A
Retailer 17
-
HK$10,480 HKD
A$2,055 AUD
View
A
Retailer 18
-
HK$10,514 HKD
$1,340 USD
View
Retailer 19
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HK$13,056 HKD
$1,664 USD
View
Price last confirmed 33 days ago
Retailer 20
-
HK$13,056 HKD
$1,664 USD
View
Price last confirmed 8 days ago
B+
Retailer 21
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HK$14,060 HKD
$1,792 USD
View
B+
Retailer 22
-
HK$15,406 HKD
$1,964 USD
View
B+
Retailer 23
-
HK$16,061 HKD
$2,047 USD
View
B
Retailer 24
-
HK$20,826 HKD
£2,090 GBP
View
Most Expensive
B
Brilliant Earth
20042804A · Nov 2
HK$25,814 HKD
$3,290 USD
View
24 more retailers have this diamond
Prices start from HK$3,460 HKDSave up to HK$22,354 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
3.51ct Marquise
HK$3,460 HKD