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Round|Lab Grown|IGI

1.51ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG674507997

Shape and cutting style on the report: Round brilliant

Certificate IGI LG674507997

Diamond specifications and retailer prices

From $684 NZD
$385 USD
As of November 1, 2026
Save $4,879 NZD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $5,563 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG674507997 or 674507997. Listed at 24 retailers as of November 1, 2026, with prices from $684 to $5,563, a $4,879 spread on the same certified stone. Brilliant Earth lists it at $5,563. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674507997
Dimensions7.44 × 7.39 × 4.51 mm
L/W Ratio1.01
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
Top View
7.44 mm7.39 mm1.51 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674507997
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.3°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: Nov 1
Current: $5,563 NZD|Low: $435 NZD|High: $5,563 NZD|Avg: $1,505 NZD|+1.3%
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
November 2, 2026
Retailer 11$435 NZD
Retailer 6$684 NZD
Retailer 19$711 NZD
Retailer 9$755 NZD
Retailer 12$1,079 NZD
Retailer 16$1,146 NZD
Retailer 7$1,202 NZD
Retailer 18$1,214 NZD
Retailer 3$1,223 NZD
Retailer 13$1,311 NZD
Retailer 14$1,361 NZD
Retailer 17$1,546 NZD
Retailer 8$1,753 NZD
Retailer 2$1,903 NZD
Retailer 5$2,518 NZD
Retailer 10$2,853 NZD
Retailer 4$2,943 NZD
Retailer 15$2,970 NZD
Brilliant Earth$5,563 NZD

27 data points across 19 retailers

24 retailers$684 NZD to $5,563 NZD

Retailer 1
-
$435 NZD
$245 USD
Price last confirmed 15 days ago
Retailer 2
-
$585 NZD
$329 USD
View
Price last confirmed 26 days ago
A
Retailer 3
-
$684 NZD
$385 USD
View
Final sale: no returns
Retailer 4
-
$706 NZD
$397 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
$711 NZD
$400 USD
View
Retailer 6
-
$755 NZD
$425 USD
View
Price last confirmed 31 days ago
Retailer 7
-
$755 NZD
$425 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$1,079 NZD
£478 GBP
View
A
Retailer 9
-
$1,146 NZD
$645 USD
View
A
Retailer 10
-
$1,202 NZD
€644 EUR
View
A
Retailer 11
-
$1,214 NZD
$683 USD
View
A
Retailer 12
-
$1,223 NZD
$688 USD
View
A
Retailer 13
-
$1,311 NZD
ZAR 11,913 ZAR
View
B+
Retailer 14
-
$1,361 NZD
£603 GBP
View
B+
Retailer 15
-
$1,546 NZD
$870 USD
View
B+
Retailer 16
-
$1,753 NZD
A$1,517 AUD
View
B+
Retailer 17
-
$1,903 NZD
$1,071 USD
View
Retailer 18
-
$2,426 NZD
$1,365 USD
View
Price last confirmed 26 days ago
B
Retailer 19
-
$2,518 NZD
$1,417 USD
View
B
Retailer 20
-
$2,853 NZD
$1,605 USD
View
B
Retailer 21
-
$2,943 NZD
$1,656 USD
View
B
Retailer 22
-
$2,970 NZD
£1,316 GBP
View
Retailer 23
-
$3,544 NZD
$1,994 USD
View
Price last confirmed 68 days ago
Most Expensive
B
Brilliant Earth
14081461A · Nov 2
$5,563 NZD
$3,130 USD
View
23 more retailers have this diamond
Prices start from $684 NZDSave up to $4,879 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
1.51ct Round
$684 NZD