CaratHunter
Plans
Round|Lab Grown|GIA

0.30ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • GIA 5506186429

Certificate GIA 5506186429

Diamond specifications and retailer prices

From $655 USD
As of October 28, 2026
2 retailers carry this diamond
Most expensive: $1,675 USD at MOH London · As of October 21, 2026
View at MOH London

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5506186429. Listed at 2 retailers as of October 28, 2026. 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

0.30
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5506186429
Dimensions4.32 × 4.30 × 2.65 mm
L/W Ratio1.00
Top View
4.32 mm4.30 mm0.30 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5506186429
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 61.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,675 USD|Low: $655 USD|High: $1,675 USD|Avg: $1,069 USD
MOH London
Retailer 2
October 28, 2026
Retailer 2$655 USD
MOH London$1,675 USD

3 data points across 2 retailers

2 retailers

B
Cheapest Retailer
-
$655 USD
Most Expensive
MOH London
5506186429 · Oct 21
$1,675 USD
£1,319 GBP
View
Price under review
1 more retailer has this diamond
Prices start from $655 USD

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.

B
0.30ct Round
$655 USD