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Marquise|Lab Grown

0.81ct G SI1 Marquise Lab Grown Diamond

EX • G/SI1 • TA50D-2-493

Diamond specifications and retailer prices

From $297 USD
As of November 2, 2026
Save $887 USD (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,184 USD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.81ct lab-grown marquise diamond

This 0.81ct lab-grown marquise sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade. Listed at 4 retailers as of October 31, 2026, with prices from $297 to $1,184, a $887 spread on the same certified stone. NZ Jewellers lists it at $1,184. 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

0.81
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateTA50D-2-493
Dimensions10.08 × 4.81 × 2.76 mm
L/W Ratio2.10
Top View
10.08 mm4.81 mm0.81 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateTA50D-2-493
Side View
Table 57.1%CrownGirdlePavilionCuletDepth 57.4%

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: Nov 2
Current: $1,184 USD|Low: $285 USD|High: $1,184 USD|Avg: $517 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2$297 USD
Retailer 4$345 USD
Retailer 3$368 USD
NZ Jewellers$1,184 USD

6 data points across 4 retailers

4 retailers$297 USD to $1,184 USD

B+
Cheapest Retailer
-
$297 USD
B+
Retailer 2
-
$345 USD
View
B
Retailer 3
-
$368 USD
View
Most Expensive
C
NZ Jewellers
fe902cfe-2556-40e5-acec-5a1dea604ca2 · Oct 31
$1,184 USD
View
3 more retailers have this diamond
Prices start from $297 USDSave up to $887 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+
0.81ct Marquise
$297 USD