CaratHunter
Plans
Oval|Lab Grown|IGI

2.51ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG843607238

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843607238

Diamond specifications and retailer prices

From $434 AUD
$305 USD
As of October 29, 2026
Save $4,164 AUD (91%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,598 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 2.51ct lab-grown oval diamond

This 2.51ct 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 LG843607238 or 843607238. Listed at 18 retailers as of October 29, 2026, with prices from $434 to $4,598, a $4,164 spread on the same certified stone. Brilliant Earth lists it at $4,598. 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

2.51
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843607238
Dimensions11.56 × 7.42 × 4.51 mm
L/W Ratio1.56
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.56 mm7.42 mm2.51 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843607238
Side View
Table 63.0%Crown 36.8°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.8%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $4,598 AUD|Low: $427 AUD|High: $5,894 AUD|Avg: $1,396 AUD|-22.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 16$434 AUD
Retailer 9$487 AUD
Retailer 8$504 AUD
Retailer 3$538 AUD
Retailer 19$538 AUD
Retailer 2$661 AUD
Retailer 18$740 AUD
Retailer 15$762 AUD
Retailer 11$927 AUD
Retailer 12$957 AUD
Retailer 5$964 AUD
Retailer 7$1,338 AUD
Retailer 17$1,654 AUD
Retailer 6$1,731 AUD
Retailer 10$1,798 AUD
Retailer 13$2,170 AUD
Retailer 4$2,177 AUD
Retailer 14$3,132 AUD
Brilliant Earth$4,598 AUD

26 data points across 19 retailers

18 retailers$434 AUD to $4,598 AUD

A
Cheapest Retailer
-
$434 AUD
$305 USD
A
Retailer 2
-
$487 AUD
$342 USD
View
Final sale: no returns
A
Retailer 3
-
$504 AUD
$354 USD
View
A
Retailer 4
-
$538 AUD
$378 USD
View
A
Retailer 5
-
$538 AUD
$378 USD
View
A
Retailer 6
-
$661 AUD
£366 GBP
View
B+
Retailer 7
-
$740 AUD
$520 USD
View
A
Retailer 8
-
$762 AUD
$535 USD
View
A
Retailer 9
-
$957 AUD
£529 GBP
View
A
Retailer 10
-
$964 AUD
$677 USD
View
B+
Retailer 11
-
$1,338 AUD
$940 USD
View
B
Retailer 12
-
$1,654 AUD
$1,162 USD
View
B+
Retailer 13
-
$1,731 AUD
$1,216 USD
View
B+
Retailer 14
-
$1,798 AUD
$1,263 USD
View
B
Retailer 15
-
$2,170 AUD
£1,200 GBP
View
B
Retailer 16
-
$2,177 AUD
$1,529 USD
View
B
Retailer 17
-
$3,132 AUD
$2,200 USD
View
Most Expensive
B
Brilliant Earth
21699557A · Oct 30
$4,598 AUD
$3,230 USD
View
17 more retailers have this diamond
Prices start from $434 AUDSave up to $4,164 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
2.51ct Oval
$434 AUD