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Oval|Lab Grown|IGI

2.55ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG739575965

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG739575965

Diamond specifications and retailer prices

From $450 AUD
$316 USD
As of October 30, 2026
Save $5,529 AUD (92%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $5,979 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 2.55ct lab-grown oval diamond

This 2.55ct lab-grown oval sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG739575965 or 739575965. Listed at 5 retailers as of October 28, 2026, with prices from $450 to $5,979, a $5,529 spread on the same certified stone. Brilliant Earth lists it at $5,979. 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

2.55
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739575965
Dimensions10.87 × 7.32 × 4.91 mm
L/W Ratio1.48
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.87 mm7.32 mm2.55 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739575965
Side View
Table 62.0%Crown 39.7°Girdle: STK-THKPavilion 41.4°Culet: NoneDepth 67.1%

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: $5,979 AUD|Low: $356 AUD|High: $6,164 AUD|Avg: $1,709 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 18, 2026
Retailer 3$356 AUD
Retailer 7$450 AUD
Retailer 8$769 AUD
Retailer 12$948 AUD
Retailer 11$1,148 AUD
Retailer 10$1,291 AUD
Retailer 9$1,375 AUD
Retailer 6$1,409 AUD
Retailer 5$1,416 AUD
Retailer 4$2,215 AUD
Retailer 2$3,111 AUD
Brilliant Earth$5,979 AUD

9 data points across 12 retailers

5 retailers$450 AUD to $5,979 AUD

A
Cheapest Retailer
-
$450 AUD
$316 USD
Final sale: no returns
B+
Retailer 2
-
$1,409 AUD
$990 USD
View
B
Retailer 3
-
$1,416 AUD
$995 USD
View
B
Retailer 4
-
$3,111 AUD
$2,185 USD
View
Most Expensive
C
Brilliant Earth
16691136A · Oct 28
$5,979 AUD
$4,200 USD
View
4 more retailers have this diamond
Prices start from $450 AUDSave up to $5,529 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
2.55ct Oval
$450 AUD