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Round|Lab Grown|UNKNOWN

0.30ct H SI1 Round Lab Grown Diamond

GD • H/SI1 • UNKNOWN 302761675

Certificate UNKNOWN 302761675

Diamond specifications and retailer prices

From $175 SGD
$137 USD
As of October 29, 2026
Save $522 SGD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $697 SGD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by UNKNOWN 302761675. Listed at 5 retailers as of October 27, 2026, with prices from $175 to $697, a $522 spread on the same certified stone. NZ Jewellers lists it at $697. 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
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 302761675
Dimensions4.34 × 4.28 × 2.54 mm
L/W Ratio1.01
Top View
4.34 mm4.28 mm0.30 ctH / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 302761675
Side View
Table 61.6%CrownGirdlePavilionCuletDepth 58.9%

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 29
Current: $175 SGD|Low: $167 SGD|High: $405 SGD|Avg: $254 SGD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$175 SGD
Retailer 4$203 SGD
Retailer 2$217 SGD
Retailer 3$405 SGD

4 data points across 4 retailers

5 retailers$175 SGD to $697 SGD

B+
Cheapest Retailer
-
$175 SGD
$137 USD
B+
Retailer 2
-
$203 SGD
$159 USD
View
B+
Retailer 3
-
$217 SGD
$170 USD
View
B
Retailer 4
-
$405 SGD
$317 USD
View
Most Expensive
C
NZ Jewellers
9a71a226-c614-4baa-8f97-d0ca4c7e38e9 · Oct 27
$697 SGD
$545 USD
View
4 more retailers have this diamond
Prices start from $175 SGDSave up to $522 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
$175 SGD