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Round|Lab Grown|IGI

6.31ct H VS2 Round Lab Grown Diamond

ID • H/VS2 • IGI LG581318516

Shape and cutting style on the report: Round brilliant

Certificate IGI LG581318516

Diamond specifications and retailer prices

From HK$7,438 HKD
$948 USD
As of October 29, 2026
Save HK$26,707 HKD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$34,144 HKD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 6.31ct lab-grown round diamond

This 6.31ct lab-grown round sits in the over five carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG581318516 or 581318516. Listed at 16 retailers as of October 29, 2026, with prices from HK$7,438 to HK$34,144, a HK$26,707 spread on the same certified stone. Blue Nile lists it at HK$34,144. 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

6.31
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581318516
Dimensions11.83 × 11.74 × 7.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.83 mm11.74 mm6.31 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581318516
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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 29
Current: HK$34,144 HKD|Low: HK$4,958 HKD|High: HK$35,070 HKD|Avg: HK$16,640 HKD|+0.0%
Blue Nile
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
October 31, 2026
Retailer 9HK$6,943 HKD
Retailer 3HK$7,438 HKD
Retailer 13HK$8,089 HKD
Retailer 15HK$8,630 HKD
Retailer 17HK$8,630 HKD
Retailer 11HK$10,003 HKD
Retailer 4HK$12,357 HKD
Retailer 2HK$12,365 HKD
Retailer 16HK$12,899 HKD
Retailer 6HK$13,801 HKD
Retailer 5HK$17,810 HKD
Retailer 14HK$18,594 HKD
Retailer 18HK$24,259 HKD
Retailer 12HK$29,304 HKD
Retailer 7HK$30,025 HKD
Retailer 10HK$32,002 HKD
Retailer 8HK$34,050 HKD
Blue NileHK$34,144 HKD

33 data points across 18 retailers

16 retailersHK$7,438 HKD to HK$34,144 HKD

A
Cheapest Retailer
-
HK$7,438 HKD
$948 USD
A
Retailer 2
-
HK$8,089 HKD
$1,031 USD
View
Retailer 3
-
HK$8,630 HKD
$1,100 USD
View
Price last confirmed 14 days ago
A
Retailer 4
-
HK$8,630 HKD
$1,100 USD
View
A
Retailer 5
-
HK$10,003 HKD
$1,275 USD
View
B+
Retailer 6
-
HK$12,357 HKD
$1,575 USD
View
A
Retailer 7
-
HK$12,365 HKD
€1,501 EUR
View
Retailer 8
-
HK$12,899 HKD
£1,295 GBP
View
Price last confirmed 14 days ago
B+
Retailer 9
-
HK$13,801 HKD
$1,759 USD
View
B+
Retailer 10
-
HK$17,810 HKD
$2,270 USD
View
B+
Retailer 11
-
HK$18,594 HKD
$2,370 USD
View
B
Retailer 12
-
HK$24,259 HKD
$3,092 USD
View
B
Retailer 13
-
HK$29,304 HKD
£2,941 GBP
View
Retailer 14
-
HK$30,025 HKD
$3,827 USD
View
Price last confirmed 12 days ago
B
Retailer 15
-
HK$34,050 HKD
$4,340 USD
View
Most Expensive
B
Blue Nile
25245800 · Oct 31
HK$34,144 HKD
$4,352 USD
View
15 more retailers have this diamond
Prices start from HK$7,438 HKDSave up to HK$26,707 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
6.31ct Round
HK$7,438 HKD