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Round|Lab Grown|IGI

0.30ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • IGI LGF1Q81770

Certificate IGI LGF1Q81770

Diamond specifications and retailer prices

From $396 SGD
$310 USD
As of October 28, 2026
Save $885 SGD (69%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,281 SGD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

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 very-good cut grade and certified by IGI LGF1Q81770 or F1Q81770. Listed at 5 retailers as of October 28, 2026, with prices from $396 to $1,281, a $885 spread on the same certified stone. Diamond Exchange Canada lists it at $1,281. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.30
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGF1Q81770
Dimensions4.21 × 4.24 × 2.76 mm
L/W Ratio1.01
Top View
4.21 mm4.24 mm0.30 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LGF1Q81770
Side View
Table 56.5%CrownGirdle: 0PavilionCulet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,281 SGD|Low: $358 SGD|High: $1,281 SGD|Avg: $729 SGD
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 4$396 SGD
Retailer 2$556 SGD
Retailer 3$698 SGD
Diamond Exchange Canada$1,281 SGD

36 data points across 4 retailers

5 retailers$396 SGD to $1,281 SGD

B+
Cheapest Retailer
-
$396 SGD
$310 USD
B
Retailer 2
-
$556 SGD
£343 GBP
View
B
Retailer 3
-
$698 SGD
€520 EUR
View
C
Retailer 4
-
$757 SGD
£466 GBP
View
Most Expensive
C
Diamond Exchange Canada
1872603983 · Oct 30
$1,281 SGD
CA$1,392 CAD
View
4 more retailers have this diamond
Prices start from $396 SGDSave up to $885 SGD

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
$396 SGD