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Round|Lab Grown|IGI

1.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG698516538

Shape and cutting style on the report: Round brilliant

Certificate IGI LG698516538

Diamond specifications and retailer prices

From $243 NZD
$137 USD
As of October 29, 2026
Save $782 NZD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,552 NZD at Rare Carat · As of August 9, 2026
View at Rare Carat

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG698516538 or 698516538. Listed at 13 retailers as of October 29, 2026, with a 322% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698516538
Dimensions6.58 × 6.63 × 4.07 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm6.63 mm1.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698516538
Side View
Table 55.0%Crown 34.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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 29
Current: $1,552 NZD|Low: $243 NZD|High: $2,940 NZD|Avg: $921 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
October 31, 2026
Retailer 11$243 NZD
Retailer 9$282 NZD
Retailer 5$302 NZD
Retailer 3$341 NZD
Retailer 2$512 NZD
Retailer 12$538 NZD
Retailer 14$548 NZD
Retailer 15$566 NZD
Retailer 10$598 NZD
Retailer 13$743 NZD
Retailer 4$971 NZD
Retailer 8$1,026 NZD
Retailer 6$1,393 NZD
Rare Carat$1,552 NZD
Retailer 7$1,863 NZD

6 data points across 15 retailers

13 retailers$243 NZD to $1,026 NZD

A
Cheapest Retailer
-
$243 NZD
$137 USD
A
Retailer 2
-
$282 NZD
$159 USD
View
A
Retailer 3
-
$302 NZD
$170 USD
View
A
Retailer 4
-
$341 NZD
HK$1,500 HKD
View
A
Retailer 5
-
$512 NZD
£227 GBP
View
A
Retailer 6
-
$538 NZD
€289 EUR
View
A
Retailer 7
-
$548 NZD
$309 USD
View
B+
Retailer 8
-
$566 NZD
$319 USD
View
A
Retailer 9
-
$598 NZD
£265 GBP
View
B+
Retailer 10
-
$743 NZD
$419 USD
View
B+
Retailer 11
-
$971 NZD
$547 USD
View
B
Retailer 12
-
$1,026 NZD
$578 USD
View
Most Expensive
Rare Carat
1271316 · Aug 9
$1,552 NZD
$875 USD
View
Price last confirmed 82 days ago
12 more retailers have this diamond
Prices start from $243 NZDSave up to $782 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
1.09ct Round
$243 NZD