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Round|Lab Grown|IGI

1.00ct D SI2 Round Lab Grown Diamond

VG • D/SI2 • IGI LG729591187

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729591187

Diamond specifications and retailer prices

From $285 NZD
$160 USD
As of October 25, 2026
Save $684 NZD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,478 NZD at MOH London · As of October 19, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG729591187 or 729591187. Listed at 13 retailers as of October 25, 2026, with a 240% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.6°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729591187
Dimensions6.53 × 6.49 × 3.75 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
6.53 mm6.49 mm1.00 ctD / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG729591187
Side View
Table 61.0%Crown 31.6°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 57.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $2,478 NZD|Low: $230 NZD|High: $2,492 NZD|Avg: $656 NZD|-0.5%
MOH London
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
October 26, 2026
Retailer 5$230 NZD
Retailer 14$258 NZD
Retailer 8$285 NZD
Retailer 13$285 NZD
Retailer 7$453 NZD
Retailer 9$531 NZD
Retailer 4$541 NZD
Retailer 10$584 NZD
Retailer 2$715 NZD
Retailer 12$725 NZD
Retailer 6$748 NZD
Retailer 11$917 NZD
Retailer 3$969 NZD
MOH London$2,478 NZD

28 data points across 14 retailers

13 retailers$285 NZD to $969 NZD

Retailer 1
-
$230 NZD
$129 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$285 NZD
$160 USD
View
A
Retailer 3
-
$285 NZD
$160 USD
View
A
Retailer 4
-
$453 NZD
£200 GBP
View
B+
Retailer 5
-
$531 NZD
€284 EUR
View
B+
Retailer 6
-
$541 NZD
$304 USD
View
B+
Retailer 7
-
$584 NZD
$328 USD
View
B+
Retailer 8
-
$715 NZD
£316 GBP
View
B+
Retailer 9
-
$725 NZD
$407 USD
View
Retailer 10
-
$748 NZD
$420 USD
View
Price last confirmed 31 days ago
B
Retailer 11
-
$917 NZD
$515 USD
View
B
Retailer 12
-
$969 NZD
$544 USD
View
Most Expensive
MOH London
LG729591187 · Oct 19
$2,478 NZD
£1,096 GBP
View
Price last confirmed 11 days ago
12 more retailers have this diamond
Prices start from $285 NZDSave up to $684 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
1.00ct Round
$285 NZD