Marquise|Lab Grown

0.31ct H VS1 Marquise Lab Grown Diamond

VG • H/VS1 • FA8-37-2078

Diamond specifications and retailer prices

From $168 USD
As of October 30, 2026
Save $503 USD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $671 USD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade. Listed at 4 retailers as of October 30, 2026, with prices from $168 to $671, a $503 spread on the same certified stone. NZ Jewellers lists it at $671. 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

0.31
Carat
H
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateFA8-37-2078
Dimensions6.87 × 3.39 × 2.20 mm
L/W Ratio2.03
Top View
6.87 mm3.39 mm0.31 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateFA8-37-2078
Side View
Table 60.2%CrownGirdlePavilionCuletDepth 64.9%

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 30
Current: $671 USD|Low: $162 USD|High: $671 USD|Avg: $293 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$168 USD
Retailer 4$195 USD
Retailer 3$209 USD
NZ Jewellers$671 USD

6 data points across 4 retailers

4 retailers$168 USD to $671 USD

B+
Cheapest Retailer
-
$168 USD
B
Retailer 2
-
$195 USD
View
B
Retailer 3
-
$209 USD
View
Most Expensive
C
NZ Jewellers
1a2c2431-7c5c-4396-8879-9dfd62575170 · Oct 31
$671 USD
View
3 more retailers have this diamond
Prices start from $168 USDSave up to $503 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+
0.31ct Marquise
$168 USD