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Round|Lab Grown|GIA

1.70ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • GIA 2456007545

Certificate GIA 2456007545

Diamond specifications and retailer prices

From $699 NZD
$394 USD
As of October 29, 2026
Save $2,692 NZD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,391 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2456007545. Listed at 16 retailers as of October 26, 2026, with prices from $699 to $3,391, a $2,692 spread on the same certified stone. MOH London lists it at $3,391. 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

1.70
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabGIA
CertificateGIA 2456007545
Dimensions7.65 × 7.61 × 4.74 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.65 mm7.61 mm1.70 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2456007545
Side View
Table 57.0%Crown 34.5°Girdle: NUL-NULPavilion 41.2°Culet: NoneDepth 62.1%

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: Oct 29
Current: $3,391 NZD|Low: $671 NZD|High: $3,427 NZD|Avg: $1,573 NZD|+0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 10$699 NZD
Retailer 11$866 NZD
Retailer 9$1,175 NZD
Retailer 6$1,292 NZD
Retailer 3$1,311 NZD
Retailer 5$1,354 NZD
Retailer 7$1,401 NZD
Retailer 8$1,579 NZD
Retailer 4$1,792 NZD
Retailer 2$2,069 NZD
MOH London$3,391 NZD

40 data points across 11 retailers

16 retailers$699 NZD to $3,391 NZD

A
Cheapest Retailer
-
$699 NZD
$394 USD
A
Retailer 2
-
$782 NZD
$441 USD
View
A
Retailer 3
-
$866 NZD
$488 USD
View
A
Retailer 4
-
$866 NZD
$488 USD
View
A
Retailer 5
-
$954 NZD
HK$4,200 HKD
View
B+
Retailer 6
-
$1,175 NZD
$662 USD
View
B+
Retailer 7
-
$1,292 NZD
£573 GBP
View
B+
Retailer 8
-
$1,311 NZD
$739 USD
View
B+
Retailer 9
-
$1,354 NZD
£601 GBP
View
B+
Retailer 10
-
$1,401 NZD
€752 EUR
View
B+
Retailer 11
-
$1,549 NZD
$873 USD
View
B+
Retailer 12
-
$1,579 NZD
$890 USD
View
B+
Retailer 13
-
$1,792 NZD
$1,010 USD
View
B
Retailer 14
-
$2,069 NZD
$1,166 USD
View
B
Retailer 15
-
$2,786 NZD
$1,570 USD
View
Most Expensive
B
MOH London
2456007545 · Oct 26
$3,391 NZD
£1,505 GBP
View
15 more retailers have this diamond
Prices start from $699 NZDSave up to $2,692 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
1.70ct Round
$699 NZD