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0.31ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG677530369

Shape and cutting style on the report: Round brilliant

Certificate IGI LG677530369

Diamond specifications and retailer prices

From HK$596 HKD
$76 USD
As of October 29, 2026
Save HK$4,884 HKD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$5,480 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677530369 or 677530369. Listed at 17 retailers as of October 29, 2026, with prices from HK$596 to HK$5,480, a HK$4,884 spread on the same certified stone. MOH London lists it at HK$5,480. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677530369
Dimensions4.36 × 4.34 × 2.62 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
4.36 mm4.34 mm0.31 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677530369
Side View
Table 61.0%Crown 34.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: HK$5,480 HKD|Low: HK$471 HKD|High: HK$5,480 HKD|Avg: HK$1,802 HKD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 13HK$596 HKD
Retailer 5HK$667 HKD
Retailer 7HK$690 HKD
Retailer 9HK$792 HKD
Retailer 10HK$792 HKD
Retailer 6HK$1,397 HKD
Retailer 2HK$1,598 HKD
Retailer 4HK$1,655 HKD
Retailer 3HK$1,726 HKD
Retailer 12HK$2,385 HKD
Retailer 8HK$2,518 HKD
Retailer 11HK$2,857 HKD
MOH LondonHK$5,480 HKD

42 data points across 13 retailers

17 retailersHK$596 HKD to HK$5,480 HKD

A
Cheapest Retailer
-
HK$596 HKD
$76 USD
Retailer 2
-
HK$596 HKD
$76 USD
View
Price last confirmed 40 days ago
A
Retailer 3
-
HK$667 HKD
$85 USD
View
Final sale: no returns
Retailer 4
-
HK$690 HKD
$88 USD
View
Price last confirmed 42 days ago
A
Retailer 5
-
HK$690 HKD
$88 USD
View
Retailer 6
-
HK$777 HKD
$99 USD
View
Price last confirmed 40 days ago
A
Retailer 7
-
HK$792 HKD
$101 USD
View
A
Retailer 8
-
HK$792 HKD
$101 USD
View
A
Retailer 9
-
HK$1,397 HKD
£140 GBP
View
B+
Retailer 10
-
HK$1,598 HKD
€194 EUR
View
B+
Retailer 11
-
HK$1,655 HKD
$211 USD
View
Retailer 12
-
HK$1,726 HKD
$220 USD
View
Price last confirmed 19 days ago
Retailer 13
-
HK$2,369 HKD
$302 USD
View
Price last confirmed 40 days ago
B+
Retailer 14
-
HK$2,385 HKD
$304 USD
View
B
Retailer 15
-
HK$2,518 HKD
$321 USD
View
B
Retailer 16
-
HK$2,857 HKD
$364 USD
View
Most Expensive
B
MOH London
LG677530369 · Oct 29
HK$5,480 HKD
£550 GBP
View
16 more retailers have this diamond
Prices start from HK$596 HKDSave up to HK$4,884 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
0.31ct Round
HK$596 HKD