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1.10ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG685511510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685511510

Diamond specifications and retailer prices

From $318 NZD
$179 USD
As of October 29, 2026
Save $1,681 NZD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,999 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.1ct lab-grown round diamond

This 1.1ct 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 LG685511510 or 685511510. Listed at 21 retailers as of October 29, 2026, with prices from $318 to $1,999, a $1,681 spread on the same certified stone. Reve Diamonds lists it at $1,999. 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

1.10
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685511510
Dimensions6.69 × 6.73 × 4.05 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
6.69 mm6.73 mm1.10 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685511510
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.3%

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 29
Current: $756 NZD|Low: $250 NZD|High: $1,999 NZD|Avg: $885 NZD|+10.3%
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
Reve Diamonds
October 31, 2026
Retailer 7$318 NZD
Retailer 17$355 NZD
Retailer 13$369 NZD
Retailer 2$394 NZD
Retailer 4$394 NZD
Retailer 14$584 NZD
Retailer 3$697 NZD
Retailer 10$707 NZD
Retailer 1$756 NZD
Retailer 15$816 NZD
Retailer 16$825 NZD
Retailer 11$886 NZD
Retailer 9$940 NZD
Retailer 5$1,038 NZD
Retailer 8$1,265 NZD
Retailer 6$1,362 NZD
Retailer 12$1,850 NZD
Reve Diamonds$1,999 NZD

44 data points across 18 retailers

21 retailers$318 NZD to $1,999 NZD

Retailer 1
-
$316 NZD
$178 USD
Price last confirmed 39 days ago
A
Retailer 2
-
$318 NZD
$179 USD
View
A
Retailer 3
-
$355 NZD
$200 USD
View
Final sale: no returns
A
Retailer 4
-
$369 NZD
$208 USD
View
Retailer 5
-
$385 NZD
$217 USD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$394 NZD
$222 USD
View
A
Retailer 7
-
$394 NZD
$222 USD
View
A
Retailer 8
-
$584 NZD
$329 USD
View
B+
Retailer 9
-
$697 NZD
$393 USD
View
B+
Retailer 10
-
$707 NZD
£314 GBP
View
B+
Retailer 11
-
$756 NZD
€406 EUR
View
Retailer 12
-
$816 NZD
$460 USD
View
Price last confirmed 13 days ago
B+
Retailer 13
-
$825 NZD
$465 USD
View
B+
Retailer 14
-
$886 NZD
A$768 AUD
View
B+
Retailer 15
-
$940 NZD
$530 USD
View
B
Retailer 16
-
$1,038 NZD
$585 USD
View
Retailer 17
-
$1,256 NZD
$708 USD
View
Price last confirmed 40 days ago
B
Retailer 18
-
$1,265 NZD
$713 USD
View
B
Retailer 19
-
$1,362 NZD
$768 USD
View
B
Retailer 20
-
$1,850 NZD
£821 GBP
View
Most Expensive
B
Reve Diamonds
E81DB53FA · Oct 30
$1,999 NZD
$1,127 USD
View
20 more retailers have this diamond
Prices start from $318 NZDSave up to $1,681 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
1.10ct Round
$318 NZD