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Round|Lab Grown|UNKNOWN

0.30ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • UNKNOWN 35638638

Certificate UNKNOWN 35638638

Diamond specifications and retailer prices

From $155 USD
As of October 29, 2026
Save $462 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $617 USD 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by UNKNOWN 35638638. Listed at 5 retailers as of October 27, 2026, with prices from $155 to $617, a $462 spread on the same certified stone. NZ Jewellers lists it at $617. 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
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 35638638
Dimensions4.38 × 4.35 × 2.59 mm
L/W Ratio1.01
Top View
4.38 mm4.35 mm0.30 ctD / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 35638638
Side View
Table 58.6%CrownGirdlePavilionCuletDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $155 USD|Low: $149 USD|High: $351 USD|Avg: $223 USD|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 10, 2026
Retailer 1$155 USD
Retailer 4$180 USD
Retailer 2$192 USD
Retailer 3$351 USD

4 data points across 4 retailers

5 retailers$155 USD to $617 USD

A
Cheapest Retailer
-
$155 USD
B+
Retailer 2
-
$180 USD
View
B+
Retailer 3
-
$192 USD
View
B
Retailer 4
-
$351 USD
View
Most Expensive
C
NZ Jewellers
eba71369-da6b-4334-89d3-cf55b02719fe · Oct 27
$617 USD
View
4 more retailers have this diamond
Prices start from $155 USDSave up to $462 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.

A
0.30ct Round
$155 USD