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1.51ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG759506912

Shape and cutting style on the report: Round brilliant

Certificate IGI LG759506912

Diamond specifications and retailer prices

From $404 NZD
As of November 5, 2026
Save $1,886 NZD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,290 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG759506912 or 759506912. Listed at 22 retailers as of November 5, 2026, with prices from $404 to $2,290, a $1,886 spread on the same certified stone. Reve Diamonds lists it at $2,290. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG759506912
Dimensions7.48 × 7.45 × 4.46 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.48 mm7.45 mm1.51 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG759506912
Side View
Table 61.0%Crown 32.8°Girdle: THN-MEDPavilion 41.3°Culet: NoneDepth 59.7%

Caratlytics Score

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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 5
Current: $458 NZD|Low: $400 NZD|High: $2,290 NZD|Avg: $1,048 NZD|+2.4%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 9$404 NZD
Retailer 1$458 NZD
Retailer 18$469 NZD
Retailer 5$500 NZD
Retailer 6$500 NZD
Retailer 3$785 NZD
Retailer 7$853 NZD
Retailer 11$866 NZD
Retailer 12$913 NZD
Retailer 14$920 NZD
Retailer 4$958 NZD
Retailer 2$1,041 NZD
Retailer 16$1,317 NZD
Retailer 13$1,587 NZD
Retailer 10$1,609 NZD
Retailer 17$1,614 NZD
Retailer 8$1,703 NZD
Retailer 15$1,999 NZD
Reve Diamonds$2,290 NZD

31 data points across 19 retailers

22 retailers$404 NZD to $2,290 NZD

A
Cheapest Retailer
-
$404 NZD
A
Retailer 2
-
$458 NZD
View
Final sale: no returns
A
Retailer 3
-
$469 NZD
View
Retailer 4
-
$500 NZD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$500 NZD
View
A
Retailer 6
-
$785 NZD
View
B+
Retailer 7
-
$853 NZD
View
A
Retailer 8
-
$866 NZD
View
A
Retailer 9
-
$913 NZD
View
B+
Retailer 10
-
$920 NZD
View
B+
Retailer 11
-
$958 NZD
View
B+
Retailer 12
-
$1,041 NZD
View
B
Retailer 13
-
$1,317 NZD
View
B
Retailer 14
-
$1,391 NZD
View
B
Retailer 15
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$1,587 NZD
View
B
Retailer 16
-
$1,587 NZD
View
Retailer 17
-
$1,595 NZD
View
Price last confirmed 47 days ago
B
Retailer 18
-
$1,609 NZD
View
B
Retailer 19
-
$1,614 NZD
View
B
Retailer 20
-
$1,703 NZD
View
B
Retailer 21
-
$1,999 NZD
View
Most Expensive
B
Reve Diamonds
70B9D45A9 · Nov 6
$2,290 NZD
$1,269 USD
View
21 more retailers have this diamond
Prices start from $404 NZDSave up to $1,886 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
$404 NZD