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Round|Lab Grown|IGI

5.51ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG756512200

Shape and cutting style on the report: Round brilliant

Certificate IGI LG756512200

Diamond specifications and retailer prices

From HK$5,633 HKD
$718 USD
As of November 1, 2026
Save HK$42,932 HKD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$48,565 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG756512200 or 756512200. Listed at 23 retailers as of October 31, 2026, with prices from HK$5,633 to HK$48,565, a HK$42,932 spread on the same certified stone. Brilliant Earth lists it at HK$48,565. 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

5.51
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756512200
Dimensions11.48 × 11.56 × 6.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.48 mm11.56 mm5.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756512200
Side View
Table 62.0%Crown 32.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 57.9%

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$48,565 HKD|Low: HK$5,414 HKD|High: HK$55,312 HKD|Avg: HK$14,749 HKD|-3.0%
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
November 2, 2026
Retailer 3HK$5,633 HKD
Retailer 6HK$6,127 HKD
Retailer 8HK$6,308 HKD
Retailer 4HK$6,535 HKD
Retailer 13HK$7,924 HKD
Retailer 16HK$9,352 HKD
Retailer 14HK$9,741 HKD
Retailer 2HK$10,363 HKD
Retailer 11HK$11,476 HKD
Retailer 10HK$13,249 HKD
Retailer 12HK$13,281 HKD
Retailer 15HK$16,099 HKD
Retailer 7HK$18,382 HKD
Retailer 5HK$22,297 HKD
Retailer 9HK$25,667 HKD
Brilliant EarthHK$48,565 HKD

45 data points across 16 retailers

23 retailersHK$5,633 HKD to HK$48,565 HKD

A
Cheapest Retailer
-
HK$5,633 HKD
$718 USD
A
Retailer 2
-
HK$6,127 HKD
$781 USD
View
A
Retailer 3
-
HK$6,308 HKD
$804 USD
View
Final sale: no returns
Retailer 4
-
HK$6,535 HKD
$833 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
HK$6,535 HKD
$833 USD
View
A
Retailer 6
-
HK$7,924 HKD
$1,010 USD
View
B+
Retailer 7
-
HK$9,352 HKD
$1,192 USD
View
A
Retailer 8
-
HK$9,741 HKD
View
A
Retailer 9
-
HK$10,363 HKD
£1,040 GBP
View
A
Retailer 10
-
HK$11,476 HKD
€1,393 EUR
View
B+
Retailer 11
-
HK$13,249 HKD
A$2,598 AUD
View
B+
Retailer 12
-
HK$13,281 HKD
ZAR 27,347 ZAR
View
B+
Retailer 13
-
HK$13,801 HKD
$1,759 USD
View
Retailer 14
-
HK$16,099 HKD
$2,052 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
HK$16,602 HKD
$2,116 USD
View
B+
Retailer 16
-
HK$18,382 HKD
$2,343 USD
View
B
Retailer 17
-
HK$21,302 HKD
$2,715 USD
View
B
Retailer 18
-
HK$22,297 HKD
$2,842 USD
View
B
Retailer 19
-
HK$22,536 HKD
$2,872 USD
View
B
Retailer 20
-
HK$25,667 HKD
£2,576 GBP
View
B
Retailer 21
-
HK$26,362 HKD
$3,360 USD
View
B
Retailer 22
-
HK$31,571 HKD
CA$5,589 CAD
View
Most Expensive
B
Brilliant Earth
17139157A · Oct 31
HK$48,565 HKD
$6,190 USD
View
22 more retailers have this diamond
Prices start from HK$5,633 HKDSave up to HK$42,932 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
5.51ct Round
HK$5,633 HKD