CaratHunter
Plans
Round|Lab Grown|IGI

2.51ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG825666387

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825666387

Diamond specifications and retailer prices

From $1,955 NZD
$1,102 USD
As of October 29, 2026
Save $5,974 NZD (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,584 NZD at Rare Carat · As of October 14, 2026
View at Rare Carat

About this 2.51ct lab-grown round diamond

This 2.51ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825666387 or 825666387. Listed at 20 retailers as of October 29, 2026, with a 306% 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
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825666387
Dimensions8.85 × 8.89 × 5.26 mm
L/W Ratio1.00
Girdle conditionFaceted
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
Top View
8.85 mm8.89 mm2.51 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825666387
Side View
Table 58.0%Crown 32.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.3%

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: $10,584 NZD|Low: $1,946 NZD|High: $10,584 NZD|Avg: $4,596 NZD
Rare Carat
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
November 1, 2026
Retailer 10$1,955 NZD
Retailer 6$2,127 NZD
Retailer 7$2,188 NZD
Retailer 12$2,699 NZD
Retailer 11$2,819 NZD
Retailer 13$3,275 NZD
Retailer 9$3,410 NZD
Retailer 14$3,416 NZD
Retailer 4$3,495 NZD
Retailer 19$3,622 NZD
Retailer 15$4,154 NZD
Retailer 5$4,251 NZD
Retailer 8$5,848 NZD
Retailer 17$5,852 NZD
Retailer 3$6,568 NZD
Retailer 2$7,225 NZD
Retailer 18$7,326 NZD
Retailer 16$7,930 NZD
Rare Carat$10,584 NZD

28 data points across 19 retailers

20 retailers$1,955 NZD to $7,930 NZD

A
Cheapest Retailer
-
$1,955 NZD
$1,102 USD
A
Retailer 2
-
$2,127 NZD
$1,199 USD
View
A
Retailer 3
-
$2,188 NZD
$1,233 USD
View
Final sale: no returns
Retailer 4
-
$2,353 NZD
$1,326 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$2,699 NZD
£1,198 GBP
View
A
Retailer 6
-
$2,819 NZD
$1,589 USD
View
A
Retailer 7
-
$3,275 NZD
£1,453 GBP
View
A
Retailer 8
-
$3,410 NZD
$1,922 USD
View
A
Retailer 9
-
$3,416 NZD
$1,925 USD
View
A
Retailer 10
-
$3,495 NZD
$1,970 USD
View
A
Retailer 11
-
$3,622 NZD
€1,944 EUR
View
B+
Retailer 12
-
$4,154 NZD
$2,341 USD
View
B+
Retailer 13
-
$4,251 NZD
$2,396 USD
View
B+
Retailer 14
-
$5,848 NZD
$3,296 USD
View
B+
Retailer 15
-
$5,852 NZD
ZAR 53,281 ZAR
View
B+
Retailer 16
-
$6,568 NZD
$3,702 USD
View
B
Retailer 17
-
$7,225 NZD
$4,072 USD
View
B
Retailer 18
-
$7,326 NZD
£3,251 GBP
View
B
Retailer 19
-
$7,930 NZD
$4,469 USD
View
Most Expensive
Rare Carat
C526-8A · Oct 14
$10,584 NZD
$5,965 USD
View
Price last confirmed 17 days ago
19 more retailers have this diamond
Prices start from $1,955 NZDSave up to $5,974 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.

A
2.51ct Round
$1,955 NZD