Round|Lab Grown|IGI

2.51ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG788646509

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788646509

Diamond specifications and retailer prices

From $852 NZD

$480 USD

As of October 29, 2026

Save $3,639 NZD (81%) vs most expensive(unlock to see where)

26 retailers carry this diamond

Most expensive: $13,485 NZD at Brilliant Earth · As of October 28, 2026

View at Brilliant Earth

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG788646509 or 788646509. Listed at 26 retailers as of October 29, 2026, with a 427% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.51

Carat

Colour

VVS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle32.9°

Pavilion angle41.1°

OriginLab Grown

Grading LabIGI

CertificateIGI LG788646509

Dimensions8.75 × 8.79 × 5.32 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG788646509

Side View

Caratlytics Score

How it works →

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: $13,485 NZD|Low: $852 NZD|High: $13,485 NZD|Avg: $3,121 NZD

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

Retailer 20

October 31, 2026

Retailer 8$852 NZD

Retailer 9$951 NZD

Retailer 19$953 NZD

Retailer 14$1,304 NZD

Retailer 5$1,325 NZD

Retailer 2$1,526 NZD

Retailer 3$1,647 NZD

Retailer 13$1,747 NZD

Retailer 6$2,342 NZD

Retailer 18$2,388 NZD

Retailer 17$2,440 NZD

Retailer 11$2,583 NZD

Retailer 15$3,392 NZD

Retailer 7$3,442 NZD

Retailer 4$3,701 NZD

Retailer 20$3,948 NZD

Retailer 16$4,339 NZD

Retailer 10$4,491 NZD

Retailer 12$5,882 NZD

Brilliant Earth$13,485 NZD

29 data points across 20 retailers

26 retailers$852 NZD to $4,491 NZD

Cheapest Retailer

$852 NZD

$480 USD

Retailer 2

$951 NZD

$536 USD

View

Final sale: no returns

Retailer 3

$953 NZD

$537 USD

View

Retailer 4

$1,056 NZD

$595 USD

View

Price last confirmed 60 days ago

Retailer 5

$1,070 NZD

$603 USD

View

Retailer 6

$1,070 NZD

$603 USD

View

Price last confirmed 15 days ago

Retailer 7

$1,304 NZD

$735 USD

View

Retailer 8

$1,325 NZD

£588 GBP

View

Retailer 9

$1,526 NZD

€819 EUR

View

Retailer 10

$1,601 NZD

A$1,388 AUD

View

Retailer 11

$1,647 NZD

$928 USD

View

Retailer 12

$1,747 NZD

£775 GBP

View

Retailer 13

$1,770 NZD

€950 EUR

View

B+

Retailer 14

$2,342 NZD

A$2,031 AUD

View

B+

Retailer 15

$2,388 NZD

$1,346 USD

View

B+

Retailer 16

$2,440 NZD

$1,375 USD

View

B+

Retailer 17

$2,583 NZD

ZAR 23,515 ZAR

View

B+

Retailer 18

$2,876 NZD

$1,621 USD

View

Retailer 19

$3,392 NZD

$1,912 USD

View

Retailer 20

$3,442 NZD

$1,940 USD

View

Retailer 21

$3,701 NZD

$2,086 USD

View

Retailer 22

$3,948 NZD

$2,225 USD

View

B+

Retailer 23

$4,339 NZD

A$3,762 AUD

View

B+

Retailer 24

$4,491 NZD

£1,993 GBP

View

Retailer 25

$5,882 NZD

$3,315 USD

View

Price last confirmed 23 days ago

Most Expensive

Brilliant Earth

20608687A · Oct 28

$13,485 NZD

$7,600 USD

View

Price under review

25 more retailers have this diamond

Prices start from $852 NZDSave up to $3,639 NZD

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.

Similar diamonds

2.51ct Round

$852 NZD