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Oval|Lab Grown|GIA

1.51ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • GIA 5523242511

Certificate GIA 5523242511

Diamond specifications and retailer prices

From $680 AUD
$478 USD
As of October 30, 2026
Save $3,208 AUD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,889 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5523242511. Listed at 7 retailers as of October 29, 2026, with prices from $680 to $3,889, a $3,208 spread on the same certified stone. MOH London lists it at $3,889. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 5523242511
Dimensions9.13 × 6.44 × 4.08 mm
L/W Ratio1.42
Top View
9.13 mm6.44 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5523242511
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,889 AUD|Low: $401 AUD|High: $3,911 AUD|Avg: $1,530 AUD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 7$401 AUD
Retailer 4$680 AUD
Retailer 6$884 AUD
Retailer 2$1,332 AUD
Retailer 5$2,417 AUD
Retailer 3$2,472 AUD
MOH London$3,889 AUD

37 data points across 7 retailers

7 retailers$680 AUD to $3,889 AUD

A
Cheapest Retailer
-
$680 AUD
$478 USD
B+
Retailer 2
-
$884 AUD
$621 USD
View
B
Retailer 3
-
$1,332 AUD
£737 GBP
View
B
Retailer 4
-
$1,791 AUD
CA$1,747 CAD
View
B
Retailer 5
-
$2,417 AUD
$1,698 USD
View
B
Retailer 6
-
$2,472 AUD
$1,737 USD
View
Most Expensive
B
MOH London
5523242511 · Oct 29
$3,889 AUD
£2,151 GBP
View
6 more retailers have this diamond
Prices start from $680 AUDSave up to $3,208 AUD

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
1.51ct Oval
$680 AUD